[The Conversation Africa] Another year, another climate record broken. Globally, 2020 tied with 2016 as the warmest year ever recorded. This was all the more remarkable given that cool conditions in the Pacific Ocean - known as La Niña - began to emerge in the second half of the year. The Earth's mean surface temperature in 2020 was 1.25°C above the global average between 1850 and 1900 - one data point maybe, but part of an unrelenting, upward trend that's largely driven by greenhouse gases from human activities.
