== Deforestation == 

 Just doing some random reading and I saw in the deforestation section of the article there is a reference to a NYT article that states: "by one estimate, for every acre of rain forest cut down each year, more than 50 acres of new forest are growing in the tropics on land that was once farmed, logged or ravaged by natural disaster." 
 Not sure how it works, but the NYT article doesn't cite any sources for this claim so is it really trustworthy information (unless an actual source can be found)?