Tuesday 18 January 2011

on floods


All of this weekend, the news has been drenched (sorry) with stories about two environmental disasters: the flooding in Brisbane, Australia; and the flooding in Brazil's Rio de Janeiro state. Both instances of flooding have nigh-devestated the affected areas, forcing people from homes and destroying property and even taking lives. These are things no one wants to happen, and while each can be explained by natural seasonal weather patterns (La Niña and a Humidity Convergence Zone, respectively), however, I couldn't help but think that global warming may have played a part.

It's no secret that polar ice is melting. All of those images of poor polar bears stranded on tiny ice flows attests to that. However, besides rising sea levels, what else would this excess mean? I give you the water cycle:


We all know it. We all get the photocopy in elementary school science class. We all know that water evaporates and condences, forms clouds and then falls back onto us in either rain or snow. But more water in the oceans means more water is being evaporated. More water evaporating means that more will fall on us than it has in the past. La Niña is a natural event, but the reason for its severity could be global warming-induced. As much rain falls in 24 hours as falls in a month in Brazil is likely global warming. And the harsh winter and heavy snow fall experienced in Europe, the UK, Canada, and the USA is, again, global warming, presented in a slightly different form.

The kind of weather being experienced globally is not natural. Yes, some of it occurs during natural phenomena, however, the severity of these occurences clearly indicates that something else is at work here. There is a clear--and almost stupidly simple--explanation, one that we humans cannot afford to ignore anymore. We can't let these sorts of things keep happening. We can't let people keep dying. Because this is just the start. If we don't do something, weather will only get worse, and from there crops are destroyed, fresh water ruined, animals perish, and more people die.

Is that really worth living happily ignorant a little while longer?

(Images borrowed from here and here.)

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