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"Since then, the United States has turned ambition into action." On the sidelines of the conference, the United States also unveiled new measures to curb emissions of the powerful greenhouse gas methane from oil and gas operations. That awkward coincidence underscores one of COP28's most contentious questions: Can the world's response to climate change involve continuing use of fossil fuels? Harris told the conference that the United States supports phasing out of "unabated coal" use, but she did not mention other fossil fuels. "We're in a context in which we need to reduce production of fossil fuels and ... we need to be on a path of lower consumption.

Persons: Kamala Harris, Joe Biden, Harris, haven't, aren't, Catherine Abreu, John Podesta, Richard Valdmanis, Valerie Volcovici, Sarah McFarlane, Simon Jessop, Katy Daigle, Kevin Liffey, Diane Craft Organizations: Climate Fund, OPEC, United, UAE, Saturday, Exxon Mobil, Saudi Arabia's Aramco, Oil, Climate Initiative, Reuters, Thomson Locations: DUBAI, United States, Dubai, COP26, America, China, Texas, New Mexico, United Arab Emirates, U.S, Saudi, Ukraine

U.S Secretary of State Antony Blinken speaks during the Transforming Food Systems in the Face of Climate Change event on the sidelines of the COP28 climate summit at Dubai Expo, in Dubai, United Arab Emirates December 1, 2023. SAUL LOEB/Pool via REUTERS Acquire Licensing RightsSummary COP 'side deals' have boomed in recent yearsVoluntary climate pledges yield mixed resultsSome have led to tougher CO2-cutting policiesDUBAI, Dec 2 (Reuters) - While the world's climate diplomats huddle over draft decisions to be made at the end of this year's U.N. climate summit, governments at COP28 are firing off a flurry of new promises for action. Among the expected pledges at COP28 are a goal to triple renewable energy capacity and initiatives on methane and coal power. These voluntary side deals have proliferated in recent years, even as global temperatures and greenhouse gas emissions continue to rise. "They go much further than what you can do multilaterally," said Marc Vanheukelen, a former EU official who led the bloc's work on an international methane emissions pledge launched at the COP26 climate summit in 2021.

Persons: Antony Blinken, SAUL LOEB, Marc Vanheukelen, Jonathan Banks, Laurie van der, OCI, It's, Erin Matson, Luiz Inácio Lula da Silva, Matson, Kate Abnett, Tommy Wilkes, Katy Daigle, Jon Boyle Organizations: Food Systems, United Arab Emirates, REUTERS Acquire, EU, Global, Air Task Force, Reuters, Bank, U.S, Change, WWF, Rainforest Alliance, Climate, Thomson Locations: Dubai, United Arab, DUBAI, COP28, Glasgow, U.S, Nigeria, Canada, The U.S, China, Russia, COP26, Britain, France, United States, Italy, Germany, Brazil

People arrive to attend the Pledging Conference of the Green Climate Fund (GCF) for the First Replenishment in Paris, France, October 25, 2019. REUTERS/Pascal Rossignol/File Photo Acquire Licensing RightsDUBAI, Dec 2 (Reuters) - The United States will pledge $3 billion to the Green Climate Fund, sources familiar with matter said on Saturday as Vice President Kamala Harris arrived in Dubai for the U.N. climate summit. The fund, with more than $20 billion in pledges, is the largest international fund dedicated to supporting climate action in developing countries. The latest pledge, which Reuters was first to report, would be additional to another $2 billion previously delivered by the United States. In addition to supporting climate adaptation, the fund also finances projects to help countries shift to clean energy.

Persons: Pascal, Kamala Harris, Harris, replenishments, Joe Biden, John Kerry, Nandita Bose, Valerie Volcovici, William James, Elizabeth Piper, Katy Daigle, Edwina Gibbs Organizations: Climate, REUTERS, Rights, Climate Fund, Reuters, Thomson Locations: Paris, France, United, Dubai, United States, U.S, COP28

☆ COP28: Exxon Mobil CEO rebuffs IEA criticism of carbon capture strategy
▼ + stars: | 2023-12-02 | by ( ) www.reuters.com time to read: +3 min

Darren Woods, CEO of ExxonMobil, reacts at the Asia-Pacific Economic Cooperation (APEC) CEO Summit in San Francisco, California, U.S., November 15, 2023. "So, you could say that about carbon capture today, you could say that about electric vehicles, about wind, about solar. The future role of carbon capture technology and fossil fuels is a key issue at the conference. Exxon has announced $17 billion of investment in its low carbon business, which includes carbon capture, and has argued that greenhouse gas emissions are the problem causing climate change, not the fossil fuels themselves. Woods declined to provide details of the contracts, but said U.S. subsidies in last year's Inflation Reduction Act of up to $85 a ton for carbon capture and sequestration would make the investments profitable.

Persons: Darren Woods, Carlos Barria, Woods, EVs, We're, Richard Valdmanis, Katy Daigle Organizations: ExxonMobil, Economic Cooperation, REUTERS, Rights, Exxon Mobil, International Energy, Reuters, Exxon, IEA, Thomson Locations: Asia, San Francisco , California, U.S, Dubai, Gulf of Mexico, United States

☆ What to watch at COP28 on Saturday?
▼ + stars: | 2023-12-01 | by ( ) www.reuters.com time to read: +1 min

Delegates walk past flag posts at the Dubai's Expo City after attending the World Climate Action Summit, during the United Nations Climate Change Conference (COP28) in Dubai, United Arab Emirates, December 1, 2023. Among the headliners expected to speak at COP28 are U.S. Vice President Kamala Harris, Barbados Prime Minister Mia Mottley and Ukrainian President Volodymyr Zelenskiy, whose video address had originally been scheduled for Friday. Governments also are poised to announce a promise to triple renewable energy capacity, boost nuclear energy capacity and rein in emissions of methane. Friday's first day at the summit highlighted tensions between the United Nations, whose secretary general urged leaders to commit to quitting fossil fuels, and the COP28's UAE hosts, who have urged cooperation with oil companies. ___For daily comprehensive coverage on COP28 in your inbox, sign up for the Reuters Sustainable Switch newsletter here.

Persons: Thomas Mukoya, Kamala Harris, Mia Mottley, Volodymyr Zelenskiy, Katy Daigle, Diane Craft Organizations: United Nations, Change, United Arab Emirates, REUTERS, Rights, UAE, Reuters, Thomson Locations: Dubai, United Arab, COP28, Barbados, Gaza

[1/2] World leaders and delegates walk at Dubai's Expo City ahead of the World Climate Action Summit during the United Nations Climate Change Conference (COP28) in Dubai, United Arab Emirates, December 1, 2023. Away from the main stage, delegations and technical committees set to work on Friday with the mammoth task of assessing their progress in meeting global climate targets, specifically the Paris Agreement goal of limiting global warming to within 2 degrees Celsius above preindustrial temperatures. The United Nations on Friday published its first draft for what could serve as a template for a final agreement from the COP28 summit, which ends Dec. 12. The summit also clinched an early victory by adopting a new fund to help poor nations cope with costly climate disasters. ___For daily comprehensive coverage on COP28 in your inbox, sign up for the Reuters Sustainable Switch newsletter here.

Persons: Thomas Mukoya, Britain's King Charles, Antonio Guterres, William Ruto, Prince Mohammed bin Salman Al Saud, Sultan Ahmed al, Jaber, Valerie Volcovici, William James, Katy Daigle, Miral Organizations: United Nations, Change, United Arab Emirates, REUTERS, Rights, Saudi, United Arab, Reuters, Thomson Locations: Dubai, United Arab, Paris, United Arab Emirates

☆ What are they saying at the U.N. climate summit?
▼ + stars: | 2023-12-01 | by ( ) www.reuters.com time to read: +4 min

Here are the latest comments:KENYA PRESIDENT WILLIAM RUTO:"The long standing adversarial dynamic between global north and global south proves practically counterproductive. Climate change does not respect artificial distinctions, traditional boundaries or old antagonisms. "We must resolve that every country shall fulfil the climate targets it is setting for itself and the commitments it is making." U.N. SECRETARY-GENERAL ANTONIO GUTERRES:"We cannot save a burning planet with a fire hose of fossil fuels... The 1.5-degree limit is only possible if we ultimately stop burning all fossil fuels.

Persons: United Arab Emirates Sheikh Mohamed bin Zayed Al Nahyan, Antonio Guterres, Britain's King Charles, WILLIAM RUTO, NARENDRA MODI, LUIZ INACIO LULA DA SILVA, KING CHARLES III, GENERAL ANTONIO GUTERRES, William James, Elizabeth Piper, Katy Daigle, Richard Valdmanis Organizations: United, United Nations, Change, United Arab Emirates, KING, GENERAL, Reuters, Thomson Locations: United Arab Emirates, Dubai, United Arab, DUBAI, KENYA, Gaza

☆ COP28 Lines up New Climate Pledges - but Do They Work?
▼ + stars: | 2023-12-01 | by ( Dec. | At P.M. | ) www.usnews.com time to read: +5 min

By Kate AbnettDUBAI (Reuters) - While the world's climate diplomats huddle over draft decisions to be made at the end of this year's U.N. climate summit, governments at COP28 are firing off a flurry of new promises for action. Among the expected pledges at COP28 are a goal to triple renewable energy capacity and initiatives on methane and coal power. These voluntary side deals have proliferated in recent years, even as global temperatures and greenhouse gas emissions continue to rise. Unlike official summit decisions, which must be passed by consensus among the nearly 200 countries, voluntary pledges can be made quickly, and boldly, without the worry of one party objecting. "They go much further than what you can do multilaterally," said Marc Vanheukelen, a former EU official who led the bloc's work on an international methane emissions pledge launched at the COP26 climate summit in 2021.

Persons: Kate Abnett DUBAI, Marc Vanheukelen, Jonathan Banks, Laurie van der, OCI, It's, Erin Matson, Luiz Inácio Lula da Silva, Matson, Kate Abnett, Tommy Wilkes, Katy Daigle, Jon Boyle Organizations: Reuters, EU, Global, Air Task Force, Bank, U.S, Change, WWF, Rainforest Alliance, Climate Locations: COP28, Glasgow, U.S, Nigeria, Canada, The U.S, China, Russia, COP26, Britain, France, United States, Italy, Germany, Brazil

BRUSSELS/DUBAI, Nov 30 (Reuters) - Countries at the U.N.'s COP28 climate summit opening on Thursday hope to clinch an early deal on a new fund to pay for climate-caused damage, aiming to muster some political goodwill before talks turn to divisive topics including the future of fossil fuels. With finance also high on the meeting agenda, the United Arab Emirates' COP28 presidency published a proposal on the eve of the summit, for countries to adopt a new U.N. climate damage fund - raising hopes among some delegates that this could be among the first deals struck in Dubai. "Opening these negotiations is like opening Pandora's box. Adnan Amin, CEO of the COP28 summit, told Reuters this month the aim was to secure several hundred million U.S. dollars for the climate damage fund during the event. A breakthrough on the climate damage fund - which poorer nations have demanded for years - could help grease the wheels for other compromises.

Persons: Wopke Hoekstra, Adnan Amin, Kate Abnett, Valerie Volcovici, Katy Daigle, Matthew Lewis Organizations: United Arab, Reuters, The European Union, Thomson Locations: BRUSSELS, DUBAI, Dubai, United Arab Emirates, Germany, Denmark, Netherlands, China, UAE, Brussels, Washington

☆ What to watch at COP28 on Friday?
▼ + stars: | 2023-11-30 | by ( ) www.reuters.com time to read: +1 min

United Arab Emirates Minister of Industry and Advanced Technology and COP28 President Sultan Ahmed Al Jaber speaks during the United Nations Climate Change Conference (COP28) in Dubai, United Arab Emirates, November 30, 2023. REUTERS/Amr Alfiky Acquire Licensing RightsDUBAI, Dec 1 (Reuters) - This year's COP28 climate summit, being held in the glitzy Middle East city of Dubai, clicks into its first full day of scheduled events on Friday. Britain's King Charles III, who has spent decades working on environmental issues, is expected to address the conference. A second day of leaders' speeches is planned for Saturday. The summit's opening on Thursday featured pleas by the COP28 president, Sultan Ahmed al-Jaber, for all parties to work together toward a consensus on the future of fossil fuels.

Persons: Sultan Ahmed Al Jaber, Amr Alfiky, Britain's King Charles III, William Ruto, Tayyip Erdogan, Volodymyr Zelenskiy, Prince Mohammed bin Salman Al Saud, Sultan Ahmed al, Jaber, Katy Daigle, Lisa Shumaker Organizations: United Arab Emirates Minister of Industry, Advanced Technology, United Nations, Change, United Arab Emirates, REUTERS, Rights, Kenyan, Saudi, Thomson Locations: Dubai, United Arab, East

The assessment could become politically divisive as it sets the stage for the next few years of global action in cutting planet-warming emissions. Based on the results, countries may be pressed to set more ambitious climate policies or to contribute more financing to help developing countries adopt clean energy. In September, the United Nations offered an early stocktake assessment that revealed countries were far behind in meeting climate goals. HOW WILL THE STOCKTAKE DRIVE CLIMATE ACTION? What then needs to be decided... what do we then do from here," Dan Jorgensen, Denmark's Global Climate Policy Minister, told Reuters.

Persons: Alex Flores, Claudia Morales, Dan Jorgensen, Kate Abnett, Katy Daigle, Josie Kao Organizations: REUTERS, Rights, United Nations, European Union, Policy, Reuters, Thomson Locations: Lake Titicaca, Bolivia, Rights DUBAI, Dubai, Paris

Such is the scene at the annual COP conference, this year being held Nov. 30-Dec. 12 in the Emirati city of Dubai. Here's how the climate summit unfolds on the ground. THE OPENING CEREMONYThe UAE has spent the last year laying the diplomatic groundwork for this year's summit. But it officially takes on the COP presidency only at the opening ceremony, which features welcome speeches and opportunities to bang the gavel. THE SCENEDuring the first few days, national leaders jet in for what is called the "High-Level Segment" involving back-to-back speeches in the venue's main plenary hall.

Persons: William James, Katy Daigle, Lisa Shumaker Organizations: UAE, Thomson Locations: Emirati, Dubai, UAE, COP26

REUTERS/Eduardo Munoz/File Photo Acquire Licensing RightsNov 29 (Reuters) - Ahead of this year's COP28 climate summit in Dubai, U.N. agencies have released several reports offering updates on global progress in limiting climate change. Emissions Gap Report. The report, released on Nov. 20, looks at how countries' planned climate action compares with what is needed to meet global climate goals. The report analyzes the difference between planned fossil fuel production and the amount deemed consistent with meeting global climate goals. In 2009, developed countries pledged to provide $100 billion per year in climate finance to developing nations.

Persons: Eduardo Munoz, wean, NDCs, Rich, Gloria Dickie, David Stanway, Susanna Twidale, Katy Daigle, Jan Harvey Organizations: U.S, REUTERS, Programme, UNEP, Thomson Locations: New York, New York City , New York, U.S, Dubai, U.N, Paris, China, Norway, Qatar, UAE, London, Singapore

Persons: William James, Katy Daigle, Lisa Shumaker Organizations: UAE, Thomson Locations: Emirati, Dubai, UAE, COP26

Here's a rough guide to the jargon being used in Dubai at COP28, this year's United Nations climate change conference. The term "climate change" is used more broadly to describe global warming and its consequences, including variable weather extremes. GHGs include a myriad of gases, but the most impactful — methane and carbon dioxide — are also referred to as "carbon emissions" because both molecules contain carbon. The world's excess carbon emissions come mostly from the burning of fossil fuels and other industrial activities. UNFCCC - The United Nations Framework Convention on Climate Change is the treaty adopted in 1992 agreeing to halt climate change.

Persons: Amanda Perobelli, COP21, NDCs, Gloria Dickie, Katy Daigle, Rod Nickel, Aurora Ellis Organizations: United Nations, Paris, Thomson Locations: Amazonia, Nova Xavantina, Mato Grosso, Brazil, Dubai, COP28, United Nations, China, PARIS, Paris, Glasgow, COP27, London

Here's what you need to know:WHAT ARE CARBON OFFSETS? Supporters of carbon offsets see them as key means to help meet these goals. At the COP26 climate summit in Glasgow, negotiators reached a breakthrough agreement to regulate trading of carbon credits, in schemes first envisioned in Article 6 of the 2015 Paris Agreement. Separate from the offsets trading envisioned under the Paris Agreement, there are two existing types of carbon markets – compliance and voluntary. It is not yet clear how various existing carbon markets might play into the U.N.-run trading scheme, which also would depend on national laws.

Persons: Chris Pryor, Elizabeth Frantz, WHAT'S, Marco Berg, Gilles Dufrasne, IETA, Jake Spring, Kate Abnett, Susanna Twidale, Katy Daigle, Josie Kao Organizations: New England Forestry Foundation, REUTERS, KliK Foundation, BE, Carbon Market Watch, Compliance, European Union, London Stock Exchange Group, Thomson Locations: New, Hersey, New Hampton , New Hampshire, U.S, Glasgow, Paris, U.S ., California

The United States, European Union and many climate-vulnerable countries are insisting on a final COP28 deal that commits countries to phase out fossil fuels. While the International Energy Agency says these emissions-abatement technologies are crucial for meeting global climate goals, they are also expensive and not currently used on a large scale. But the EU and some climate-vulnerable countries insist on pairing this pledge to boost renewables with phasing out fossil fuels, setting up a clash. FINANCING FOR THE COSTS OF CLIMATE CHANGETackling climate change and its consequences will take an astonishing amount of investment - far more than the world has budgeted so far. At COP28, countries will be tasked with setting up a "loss and damage" fund to help with this, which developing nations say should unlock at least $100 billion by 2030.

Persons: Sultan al, Jaber, Kate Abnett, Katy Daigle, Josie Kao Organizations: European, COP28, International Energy Agency, European Union, EU, U.S, United Arab Emirates, Thomson Locations: Dubai, Paris, COP26, United States, European Union, Russia, UAE, EU, China, COP28

Here are some of the main players and negotiating blocs involved in the COP28 conference starting Nov. 30 in Dubai. In climate negotiations, Beijing argues that wealthy developed countries like the United States, the biggest historical CO2 emitter, should move first and fastest in climate policy and finance. Despite having the world's second largest economy after the United States, China considers itself as a developing nation in the climate talks. But U.S. delegates will face pressure for climate finance after Washington pledged no new climate cash to the United Nations this year. AFRICAN GROUP OF NEGOTIATORSAfrican countries will be pushing at COP28 for climate finance and financial mechanisms to speed up green energy projects.

Persons: Rula, Kate Abnett, Katy Daigle, Josie Kao Organizations: Abu Dhabi Sustainability, REUTERS, UNITED, Washington, United Nations, EU, GROUP, Marshall, European Union, Thomson Locations: UAE, Abu Dhabi, Dubai . CHINA China, China, Beijing, United States, U.S, Union, United, United Kingdom, London, Brazil, South Africa, India, Saudi Arabia, CHINA, Kenya, Ethiopia, Senegal, Mozambique, Vanuatu, Costa Rica

Some oil and gas companies have so far participated in voluntary programs to monitor or reduce their methane emissions. Last year's methane emissions from the energy industry totaled some 135 million metric tons, slightly higher than the year before. Climate experts say that including methane efforts in a legally binding summit agreement is a priority. That means that reining in methane emissions can have a more immediate impact in limiting climate change. Countries and philanthropies previously have pledged roughly $200 million for tackling methane – less than 2% of all current climate financing.

Persons: Rachel Kyte, Rick Duke, Mark Brownstein, Durwood Zaelke, Valerie Volcovici, Sarah McFarlane, Kate Abnett, Katy Daigle, Josie Kao Organizations: Reuters, Clean Air Task Force, U.S, United Arab, The, Bank, Environmental Defense Fund, Institute for Governance, Sustainable Development, D.C, EU, Thomson Locations: EU, United Arab Emirates, UAE, Turkmenistan, The UAE, U.S, China, Canada, COP28, Washington, London, Brussels

☆ The promise and risks of deep-sea mining
▼ + stars: | 2023-11-15 | by ( ) www.reuters.com time to read: +13 min

The promise and risks of deep-sea mining A vast treasure of critical minerals lies on the ocean floor. All of these factors make deep-sea mining more appealing, supporters say. Environmentalists, however, say it’s a false dichotomy, as land mining will continue whether or not deep-sea mining is allowed. Any country can allow deep-sea mining in its territorial waters, and Norway, Japan and the Cook Islands are close to allowing it. For now, the ISA's members are hotly debating the best standards for deep-sea mining.

Persons: Gerard Barron, Margo Deiye, “ We’re, ”, Barron, “, Beth Orcutt, Jason Gillham, Joe Carr, Pradeep Singh, Kira Mizell, Julia Wolfe, Katy Daigle, Claudia Parsons Organizations: International Energy Agency, P Global, Authority, United Nations, ISA, Metals Co, Russia's JSC, Blue Minerals, Exploration, Metals, Clarion, Companies, U.S . Geological Survey, Benchmark Mineral Intelligence, The Metals Co, Northwest, Maine's Bigelow Laboratory, Ocean Sciences, Impossible Metals, NOAA, Research, Aquarium Research, Bigelow Laboratory, Research Institute, Sustainability, . Geological Survey Locations: Brazil, Norway, Japan, Cook, Vancouver, Blue, Blue Minerals Jamaica, China, Hawaii, Mexico, Nauru, U.S, Russia, France, India, Poland, Tokyo, Monterey

That position is opposed by the plastic industry and by oil and petrochemical exporters like Saudi Arabia, who want to see plastic use continue. They argue that the treaty should focus on recycling and reusing plastics, sometimes referred to in the talks as "circularity" in the plastics supply. In a submission ahead of this week's negotiations, Saudi Arabia said the root cause of plastic pollution was "inefficient management of waste." "The plastics agreement should be focused on ending plastic pollution, not plastic production," Kastner told Reuters in a statement. Countries will also be debating whether the treaty should set transparency standards for chemical use in plastics production.

Persons: Carlo Allegri, David Azoulay, Matthew Kastner, Kastner, Bjorn Beeler, Beeler, Christina Dixon, Valerie Volcovici, Katy Daigle, Aurora Ellis Organizations: United Nations, UN, REUTERS, Center for International Environmental, European Union, U.S . State Department, Reuters, The International Council of Chemical Associations, Network, Saudi, Environmental Investigation Agency, Thomson Locations: Manhattan, New York City , New York, U.S, Nairobi, Kenya, Japan, Canada, Saudi Arabia, United States

☆ In UN Talks for a Global Plastic Treaty, Delegates to Face off Over Production Limits
▼ + stars: | 2023-11-12 | by ( Nov. | At A.M. | ) www.usnews.com time to read: +4 min

Persons: Valerie Volcovici, David Azoulay, Matthew Kastner, Kastner, Bjorn Beeler, Beeler, Christina Dixon, Katy Daigle, Aurora Ellis Organizations: Center for International Environmental, UN, European Union, U.S . State Department, Reuters, The International Council of Chemical Associations, Network, Saudi, Environmental Investigation Agency Locations: Nairobi, Kenya, Japan, Canada, Saudi Arabia, United States, U.S

Mendoza, a former fighter for the now-disbanded Revolutionary Armed Forces of Colombia (FARC) guerrillas, dragged her children back inside the house. In interviews with Reuters, those people recounted how the attacks left conservation projects adrift, with conservationists withdrawing from environmental protection works because of fear of more violence. Municipal data from local environmental authorities and the Colombian Institute of Meteorology (IDEAM) also showed that in the year after each killing, deforestation at a local level was worse than national trends. Santofimio's killing brought his hard-fought conservation project to a halt. In the tree nursery, which stopped work after Santofimio's killing, saplings bask in the dappled sunlight beneath protective nets.

Persons: Duberney Lopez, Jorge Santofimio, PUERTO, Leidy Mendoza, Mendoza, Jorge !, they'd, Susana Muhamad, Muhamad, Colombia's, –, Armando Aroca, Santofimio, Lopez, Kevin Murakami, Comuccom, Aroca, Javier Franciso Parra, Francisco couldn't, Andres Felipe Garcia, Cormacarena, Parra, Garcia, Luisz Martinez, Martinez, La, KfW, Roberto Gomez, Gonzalo Cardona, Sara Ines Lara, Oliver Griffin, Julia Symmes Cobb, Katy Daigle, Claudia Parsons Organizations: Revolutionary Armed Forces, Colombian, Villagers, Reuters, Environment Ministry, Global, Colombian Institute of Meteorology, Comuccom, International Narcotics, Law, Affairs, U.S, National Liberation Army, UN, Programme, Meta, UNDP, Progress, World Wildlife Fund, Security, USAID, Thomson Locations: Colombia, PUERTO GUZMAN, Putumayo, Bogota, La, Meta, La Macarena, Amazonia, Puerto Guzman

Countries pledged in the 2015 Paris Agreement to hold global warming to within 1.5C above pre-industrial temperatures but the new paper by a team of scientists, including from NASA and Columbia University, adds to evidence suggesting that this goal is already out of reach. Most emissions scenarios under the United Nations Intergovernmental Panel on Climate Change (IPCC) envision the world breaching 1.5C during the 2030s. EARTH SENSITIVITYThe study's findings, published in the journal Oxford Open Climate Change, result from two factors. The IPCC has given a best-guess estimate that the doubling of atmospheric carbon dioxide levels would yield global warming of around 3C (5.4F). Cleaning the skies, while bringing health benefits and saving lives, accelerates climate change.

Persons: Thomas Peter, James Hansen of, Michael Mann, Pennsylvania's Mann, Klaus Hubacek, Katy Daigle, Gareth Jones Organizations: REUTERS, NASA, Columbia University, United Nations, James Hansen of Columbia, Earth Institute, University of Pennsylvania, IPCC, University of Gronigen, Thomson Locations: Gan, Nanchang, Jiangxi province, China, UN, Paris, 1.5C, heatwaves, Libya, Dubai, 4.8C

Nov 2 (Reuters) - Air pollution, a global scourge that kills millions of people a year, is shielding us from the full force of the sun. "It's this Catch-22," said Patricia Quinn, an atmospheric chemist at the U.S. National Oceanic and Atmospheric Administration (NOAA), speaking about cleaning up sulphur pollution globally. "If you implement technologies to reduce air pollution, this will accelerate – very significantly – global warming in the short term." The Chinese and Indian environment ministries didn't immediately respond to requests for comment on the effects of pollution unmasking. As the implications of the pollution unmasking become more apparent, experts are casting around for methods to counter the associated warming.

Persons: poring, Patricia Quinn, Paulo Artaxo, Xi Jinping, Xi, El, Yangyang Xu, Xu, unmasking, Laura Wilcox, COVID, Sergey Osipov, Michael Diamond, Jake Spring, David Stanway, Sakshi Dayal, Katy Daigle Organizations: U.S . National Oceanic, Atmospheric Administration, NOAA, Reuters, World Health Organization, U.S . Clean, National People's, China Meteorological Administration, El Nino, M University, Britain's University of Reading, India Meteorological Department, India, Clean, Programme, King Abdullah University of Science, Technology, Florida State University, Thomson Locations: India, China, Beijing, 10.34C, Texas, Chongqing, Wuhan, SO2, heatwaves, Xinjiang, INDIA, Europe, Northern China, U.S, Saudi Arabia, Sao Paulo, Singapore, New Delhi

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