Update from Argentina
Peter Nunns, studying in Argentina, writes:
Morgan:
Yesterday, we visited San Carlos, a rural community in the northwest Salta province of Argentina. I got a chance to talk at reasonable length with a local pimento farmer - it's a fairly arid and sunny region in the summer, and so a fair amount of water is needed for the crops.
What's been happening, though, is that the rainfall has been decreasing for 4 or 5 years in a row. The plants this season are maybe a half or a third as large as they usually are - as water has to be transported quite a distance (30 kilometers, I think) if it's not falling from the sky.
The economic effect of this is fairly huge, too. They get around 3 pesos (1USD) for a kilo of dried and powdered pimentos. (Which then sells for 5 pesos in Buenos Aires - the good old intermediary effect.) And generally, it takes around 100 kilos of fresh produce to make 20 kilos of final product. (Which is delicious, by the way.)
With the usual amount of rainfall, they get around 2-3,000 kilos per harvest, and there are harvests every 15-20 days during the pimento season (Planted in January, last harvest in late April or May.) But the latest harvest was only 800 kilos. It's scary.
Keep saving the planet.
Peter
On a related note, I skied Tuckermans Ravine in NH this week. The popular spring skiing destination is usually full of snow until late May. This year, in late March, snow levels were the lowest I've ever seen and some runs even had bare spots.
Are these signs of global warming? No. Droughts often have 5 year cycles, 20 year cycles, 100 year cycles and so on. Bad snow years have always happened. Does global warming increase the likelihood of whether events like these? Yes. There's a distinction that's important to make. But when you know that these kinds of things are more likely to happen, then it makes you mad to see them. I know I'm mad.