Climate change will affect many large ecosystems around the world
BBC: Climate set for 'sudden shifts'
Some of these changes are already occurring.
One that I was not aware of was the changing of the Sahel region. That is the northern half of Africa.
That part of the world containing the Sahara is getting greener.
The greening of the Sahel
After several decades of declining rainfall and dwindling food production in the Sahel, reports telling a different story started to appear. Analyses made by several independent groups of temporal sequences of satellite data over two decades since early 1980s, showed a remarkable increasing trend in vegetation greenness.
The first results appeared in 2003 and showed a strong increase in seasonal greenness that was observed over large areas of the Sahel during the period 1982-1999. These results were then followed up by more recent studies where the time series have been extended to cover the period 1982-2003, verifying the previous results.
No comments:
Post a Comment