The warming during the summer months in Europe has been much faster than the global average, shows a new study published in the Journal of Geophysical Research Atmospheres. As a consequence of human emissions of greenhouse gases, the climate across the continent has also become drier, particularly i
Left and right figures show warming in Europe of the summer half-year during the latest four decades, subdivided for clear-sky and all.sky conditions, respectively. Credit: Paul Glantz/Stockholm University
Left and right figures show changes in sensible and latent heat fluxes, respectively, in Europe during the latest four decades of the summer half year. Credit: Paul Glantz/Stockholm University “What we see in southern Europe is in line with what IPCC has predicted, which is that an increased human impact on the greenhouse effect would lead to dry areas on Earth becoming even drier,” says Paul Glantz.
“The airborne aerosol particles, before they began to decrease in the early 1980s in Europe, have masked the warming caused by human greenhouse gases by just over one degree on average for the summer half-year. As the aerosols in the atmosphere decreased, the temperature increased rapidly. Human emissions of carbon dioxide are still the biggest threat as they affect the climate for hundreds to thousands of years,” says Paul Glantz.
Paul Glantz, Associate Professor at the Department of Environmental Science, Stockholm University, and main author of the study. Credit: Stockholm UniversityGreenhouse gases are largely unaffected by solar radiation while they absorb infrared radiation efficiently, leading to re-emission towards the Earth’s surface. The Earth absorbs both solar radiation and infrared radiation, which leads to the warming of the lower part of the atmosphere in particular.
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