e know that migration linked to climate change transcends species. As the oceans get warmer, fish are looking for cooler waters to call home. Diseases are spreading to regions previously inhospitable to them. And the United Nations estimates that at least 25 million people will be displaced by deteriorating environmental conditions by 2050.

Humanity faces increasingly painful trade-offs between food security and rising temperatures within decades unless emissions are curbed and unsustainable farming and deforestation halted, a landmark climate assessment said Thursday.

The Intergovernmental Panel on Climate Change has released a special report outlining what would need to be done to keep the world from warming up by more than 1.5°C.

The year 2020 was one of the three warmest on record, and rivalled 2016 for the top spot, according to a consolidation of five leading international datasets by the World Meteorological Organization (WMO). A naturally occurring cooling climate phenomenon, La Niña, put a brake on the heat only at the very end of the year.

October Highlights: