Exxon knew about climate change decades ago, spent $30M to discredit it

The results of an eight-month investigation by InsideClimate News, published Wednesday, show that Exxon scientist warned company executives decades ago about human-caused global warming. But despite its own 40-year-old research that showed that burning fossil fuels released carbon dioxide that was warming the planet to harmful levels, Exxon – the United States' largest oil company – has spent $30 million to discredit climate science to protect its carbon-based business.
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