Desertification in Spain

 

 

Study warns of desertification in Spain

AP

Southern Spain will become desert and deciduous forests will vanish from much of the Mediterranean basin unless global warming is reined in sharply, according to a study released Thursday.

Researchers used historical data and computer models to forecast the likely impact of climate change on the Mediterranean region, based on the targets for limiting global warming 195 countries agreed to during a summit in France last year.

“The Paris Agreement says it’s necessary to limit global warming to 2 degrees Celsius (3.6 degrees Fahrenheit), if possible 1.5 degrees,” Joel Guiot, a researcher at the National Center of Scientific Research in France who co-wrote the study, said. “That doesn’t seem much to people, but we wanted to see what the difference would be on a sensitive region like the Mediterranean.”

The authors examined the environmental changes the Mediterranean has undergone during the last 10,000 years, using pollen records to gauge the effect that temperatures had on plant life.

They came up with four scenarios pegged to different concentrations of greenhouse gases in the atmosphere. Three of the scenarios are already widely used by scientists to model future climate change, while the fourth was designed to predict what would happen if global warming remains at or below 1.5 degrees Celsius this century.

The fourth scenario is particularly ambitious because average global temperatures have already risen by 1 degree Celsius since pre-industrial times. It is, however, the only one under which Mediterranean basin ecosystems would remain within the range of changes seen in the past 10,000 years, the researchers found.

 

Read the full article: The China Post

Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.