Oil industry knew of 'serious' climate concerns more than 45 years ago

Researchers warned American Petroleum Institute in 1968 that the release of carbon dioxide from fossil fuels could lead to 'worldwide environmental changes'

The oil industry's knowledge of dangerous climate change stretches back to the 1960s, with unearthed documents showing that it was warned of "serious worldwide environmental changes" more than 45 years ago.

The Stanford Research Institute presented a report to the American Petroleum Institute (API) in 1968 that warned the release of carbon dioxide from burning fossil fuels could carry an array of harmful consequences for the planet.