Governments Knew the Risks of Global Warming as They Chose Fossil-Fueled Growth in the 1950s and ’60s
A recent report from the Center for International Environmental Law confirms that major global powers understood the risks of climate change long before the Paris Agreement. Researchers found evidence that governments in the United States, United Kingdom, Russia, and several other nations possessed scientific data regarding global warming as early as 1957.
Throughout the 1960s, these countries held internal conferences and received direct warnings from experts about rising temperatures, melting ice caps, and sea-level rise. Despite these clear findings, many of these same governments incentivized aggressive fossil fuel production and expansion. Records indicate that officials were informed of potential climate impacts at the same time they subsidized oil and coal growth for economic gain.
The documents show that this scientific awareness was not limited to secret files. Research was disseminated within government agencies and discussed at public symposia. By the 1970s, agencies in countries like Canada were openly debating the effects of fossil fuels in internal newsletters. These findings establish a timeline that may influence future legal challenges regarding international environmental liability.
Legal experts note that this historical record aligns with recent opinions from the International Court of Justice. The court previously established that nations hold a duty to prevent significant climate harm. This new documentation helps clarify when governments became aware of the risks, suggesting that continued promotion of fossil fuels after receiving such warnings may hold greater legal weight today.
By framing the historical record within international law, this report challenges the notion that governments were unaware of the consequences of their policies. It presents a case for accountability based on what leaders knew and the actions they chose to take despite those facts.

