At a Times Event, Opposing Views on Climate Change Collide

In a day of live journalism, California’s governor assailed President Trump, and the U.S. energy secretary called for countries to quit the Paris Agreement on global warming.

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At U.N. Summit, China Promises to Reduce Greenhouse Gas Emissions

President Xi Jinping told a U.N. climate summit that China will reduce emissions across its economy, expand renewables sixfold and make electric cars “mainstream.”

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At U.N., Trump Says Green Energy Is a Scam and Attacks Climate Science

In a remarkable United Nations address, the president lashed out at wind turbines, environmentalists and allies around the world while dismissing the dangers of climate change.

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Here Comes the Sun Day

Fifty-five years after the first Earth Day, climate activists are organizing a nationwide celebration of solar power.

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Climate ‘Ideology’ Hurts Prosperity, Top U.S. Officials Tell Europeans

Chris Wright, the energy secretary, said he would push Europe to loosen environmental rules and buy more gas. Doug Burgum, the interior secretary, tied fossil fuels to a need to win the A.I. race.

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China’s Renewable Energy Investment Helping Stem Fossil Fuel Growth, Report Says

Its vast investment in solar, wind and batteries is on track to end an era of global growth in the use of coal, oil and gas, the researchers said.

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China’s Exports to Africa Are Soaring as Trade to U.S. Plunges

Already this year, China’s trade surplus with Africa is nearly as big as all of 2024, a sign of how President Trump’s tariffs are reshaping the flow of goods.

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Court Hands a Loss to Groups Seeking Billions in Frozen Climate Funds

The nonprofit organizations are fighting a Trump administration effort to claw back climate and clean energy grants.

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A Casualty of Trump’s Tariffs: India’s Nascent Solar Industry

The full weight of a 50 percent tariff on Indian goods took effect this week, undercutting one of the country’s most promising markets for solar exports.

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On the Front Lines of Climate Change, Firefighters Are Getting Very Sick

Across the country, unmasked wildfire fighters are falling ill and dying. Hannah Dreier talks about her investigation into the risks these workers face.

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