Climate scientists observed last week that the world crossed an important milestone. For the first time in 3 million years, the concentration of CO2 in the atmosphere exceeded 400 parts per million. The last time we were at this point, the world looked very different. It was the Pliocene Epoch, and global temperatures were 2 to 3 degrees Celsius warmer. Alligators and tapirs lived on islands off the coast of Greenland, and much of the world was covered by grasslands that looked a lot like the modern African savanna.
I’ve previously discussed the impact that climate change will likely have on the world’s agriculture in general and on California’s wine industry in particular.
But, as Laura Reynolds notes at Nourishing the Planet, agriculture will not just be affected by climate change; it is also an important contributor. Reynolds observes that,
In 2010, global greenhouse gas emissions from the agricultural…
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Dr. Bukar Ali USMAN, mni 