The former president made the claim before dismissing climate change as 'weather'.
Temperatures reached more than 40°C above average for three days in the continent.
The world's largest rainforest may be less able to recover from damage caused by droughts, fires and deforestation, a study suggests.
The United Nations is set to approve plans for a landmark treaty to tackle plastic waste after 175 countries agreed to a new resolution.
Beijing 2022 is the first Winter Olympics where all the snow athletes will compete on is artificial.
Experiments at the Joint European Torus laboratory broke a world record.