‘Powerful Evidence’ of Global Warming’s Effect on Seasons Found in Troposphere

Scientists studying the troposphere – the lowest level of the atmosphere – have found “powerful evidence” that climate change is altering seasonal temperatures.

A study published in Science finds that climate change has caused an increase in the difference between summer and winter temperatures across North America and Eurasia over the past four decades.

This could be the result of summer temperatures warming at a faster rate than winter temperatures in these parts of the world, the lead author tells Carbon Brief.

The findings show the “substantial human influence on Earth’s climate, affecting not only global averages, but also local and seasonal changes”, another scientist says.

Most of the world’s weather originates in the troposphere, a second scientist tells Carbon Brief, meaning that changes to seasonal temperatures could be affecting the likelihood of extreme weather events, such as flooding and drought.

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