03-07-2011, 12:24 AM
2100 is a little far off for most people's concern, but I thought this was interesting:
The tropical rain band that wraps the globe north of the equator migrates as atmospheric temperature changes, altering rainfall patterns worldwide.
Data from sediments in Pacific Island lakes show that the band is at 3°N to 10°N, as far north as it has ever been in at least 1,200 years.
At current warming rates, the band could shift north by five degrees by 2100, drying out farmland for millions of people in Ecuador, Colombia and elsewhere.
http://www.scientificamerican.com/articl...nd-of-rain