The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) marks 50 years since it entered into force on Tuesday, celebrating five decades of protecting endangered wildlife from overexploitation through international trade.

Spain and Brazil have launched a joint initiative to promote a higher tax take from the super-rich worldwide, aiming to tackle soaring inequality by ensuring those with the most, pay their fair share.

The blistering early-summer heatwave that’s brought life-threatening temperatures across much of the northern hemisphere is a worrying sign of things to come, UN weather experts said on Tuesday.