yes, someone should in fact do the math! e.g. I vaguely remember some factoid about how some significant amount of top-soil in the Amazon rain forest is attrib

yes, someone should in fact do the math! e.g. I vaguely remember some factoid about how some significant amount of top-soil in the Amazon rain forest is attributed to top-soil/sand from Africa? Also, I just googled "deforestation affect wind" and got some interesting results.