Our research on ice cores clearly confirms that the climate change we experience today is linked with our human activities. - Jean Jouzel

The last numbers in 2011 indicated that climate change was 90% linked to our emissions of greenhouse gases – 90% directly linked to petrol usage and the rest to deforestation.

Political figures didn't pay attention to what the scientists were saying. Because our message in the 90s was the same one we have today in the 2010s. Which is if we keep on producing more greenhouse gases without restriction, we're looking at consequential shifts in temperature in the second part of the 21st century and beyond.

“I have long been convinced that looking at the past is a key to understanding the future. This applies not only to ice cores but also to oceanic and continental archives."