Etiqueta: jordi sardans

News

The greening of the earth is reaching its limit

19 de September 2017Albert Naya i Díaz

A new study led by Josep Peñuelas and published in Nature Ecology and Evolution reveals that CO2 abundance in the atmosphere no longer has a powerful fertilizing effect on vegetation. The greening that has been observed in recent years is slowing and this will cause CO2 levels in the atmosphere to rise, thus increasing temperatures and leading to increasingly severe changes in climate.

News

Climate change is already threatening the Mediterranean ecosystems of Catalonia

19 de July 2017Albert Naya i Díaz

An extensive review of studies and databases reveals that drought and an increase in temperature are already causing species substitutions, greater aridity, higher forest fire risk, lower soil fertility, and lower water availability, among other negative impacts.

News

Phosphorus, once only a nutrient, has become a contaminant on a global scale

17 de March 2017Albert Naya i Díaz

Freshwater ecosystems near densely populated areas have levels of phosphorus which are very high and out of balance with nitrogen levels. This has resulted in altered ecosystem functioning, lower water quality, and has made water conservation more difficult.

News

Scientists identify the 13 most important research challenges to face global change in the Mediterranean region

3 de February 2015J.Luis Ordóñez

Scientists consider it key to understand why droughts kill so many trees and the influence of local forest histories on tree mortality. They also warn that we know very little about the joined effects of different disturbances on each ecosystem, and highlight the necessity to plan research projects covering more time and space. 

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