What has been the most dramatic evidence of climate change in the past decade?

The most dramatic evidence of climate change in the past decade has been the rapid increase in global average temperatures. According to data from the World Meteorological Organization, the global average temperature has increased by 1.1 °C (2.0 °F) since the pre-industrial era, with most of the warming occurring since the 1970s. This increase in global average temperature has been accompanied by many other changes in the climate system, including changes in ocean heat content, sea level rise, and the acidification of the ocean.

The most visible evidence of climate change in recent years has been the increasing frequency and intensity of extreme weather events, such as heat waves, droughts, and floods. According to the Intergovernmental Panel on Climate Change (IPCC), the frequency and intensity of these events have increased significantly since the 1950s, and are likely to continue to increase as the climate continues to warm.

Other evidence of climate change has included changes in Arctic sea ice, melting of glaciers, and changes in the distribution of plants and animals. Arctic sea ice is melting at an alarming rate, with summertime sea ice extent declining by 13.2% per decade since 1979. Glaciers around the world are also retreating, with the rate of retreat increasing in recent years. Finally, changes in the distribution of plants and animals have been observed, with species shifting their ranges and habitats in response to changing climates.

Overall, the evidence of climate change over the past decade has been dramatic, with global average temperatures increasing, extreme weather events becoming more frequent and intense, and other changes taking place in the climate system. As the climate continues to warm, these changes are likely to become even more pronounced in the years to come.