HOUSTON, March 8 (Reuters) - Enormous challenges remain across global energy markets in the wake of the war in Ukraine, U.S. Energy Secretary Jennifer Granholm said on Wednesday, with continued risks for energy security and the need to mitigate climate change. Russia's invasion of Ukraine led to an energy crisis in Europe as the Russian gas the continent depended on stopped flowing and Western sanctions disrupted Russian oil supplies. U.S. industry had responded to the energy crisis in Europe by producing and exporting more energy to become an indispensable energy partner to allies, Granholm said. Granholm called on executives from the fossil fuels and renewable industry to play their part in the energy transition to a low-carbon economy. Oil and gas would remain part of the energy mix for years to come, she said, and abated fossil fuel use would continue in mid-century.

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