Rate and impact of climate change surges dramatically in 2011-2020

5 December 2023

Geneva/Dubai (WMO) - The rate of climate change surged alarmingly between 2011-2020, which was the warmest decade on record. Continued rising concentrations of greenhouse gases fuelled record land and ocean temperatures and turbo-charged a dramatic acceleration in ice melt and sea level rise, according to a new report from the World Meteorological Organization (WMO).

The Global Climate 2011-2020: A Decade of Acceleration sounded the alarm, in particular, at the profound transformation taking place in Polar regions and high mountains. Glaciers thinned by around 1 meter per year - an unprecedented loss – with long-term repercussions for water supplies for many millions of people. The Antarctic continental ice sheet lost nearly 75% more ice between 2011-2020 than it did in 2001-2010 – an ominous development for future sea level rise which will jeopardize the existence of low-lying coastal regions and states.

In a glimmer of hope, the report said that the Antarctic ozone hole was smaller in the 2011-2020 period than during the two previous decades thanks to successful and concerted international action to phase out ozone depleting chemicals, an indication of the success of the Montreal Protocol. 

Last updated: 14 December 2023