Land Use Change has Warmed the Earth's Surface

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Recent changes to vegetation cover are causing the Earth's surface to heat up. Activities like cutting down evergreen forests for agricultural expansion in the tropics create energy imbalances that lead to higher local surface temperatures and contribute to global warming.

Natural ecosystems play a crucial role in helping combat climate change, air pollution and soil erosion. A new study by a team of JRC researchers sheds light on another, less well-known aspect of how these ecosystems, and forests in particular, can protect our planet against global warming.

The research team used satellite data to analyse changes in global vegetation cover from 2000 to 2015 and link these to changes in the surface energy balance. Modifying the vegetation cover alters the surface properties – such as the amount of heat dissipated by water evaporation and the level of radiation reflected back into space – which has a knock-on effect on local surface temperature. Their analysis reveals how recent land cover changes have ultimately made the planet warmer.

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