tisdagen den 17:e maj 2011

Global Dimming

So, a new problem has emerged for us humans.
Global warming. The thought is often dismissed cause its not so bad after all. I mean, people dont see the real effect of it as any major issue since its not affecting them directly. They only hear about the ice melting and its getting a bit warmer and perhaps a bit more extreme weather but overall they dont think that 0,6 degrees celcius higher temperature in 100 years is that high and that we have plenty of time to fix it.
The problem is that we have begun to realise that the global warming is being somewhat neutralized by something called Global Dimming. This means that we are stirring up alot of small particles that usually isnt in the air. These particles get small droplets of water on them and they create clouds. These clouds, unlike normal clouds, have smaller particles and thus they stay in the air longer than usual. They reflect the sunrays before it hits the earth. Overall, the insolation to the planet has diminished with 10%.
Water evaporates with the help of sunrays and heat. Mostly sunrays. This is thought to be the reason for the masstarvation in Ethiopia during the 80s when the rainclouds did not occur.
This global dimming is caused by unclean combustion, and with the starting of 90s with the era of catalysts on cars our air became a bit more cleaner, thus letting in more sun to hit the earths surface. This resulted in a rapid increase of temperature.
So we realise now that our global warming could have been much more worse than it is if we havent stirred so much particles up in the atmosphere. This is a new problem, since unclean air is dangerous to our health and without it we will experience a much more rapid global warming, we are facing a dilemma. The particles are protecting us against a serious problem to our existance and at the same time its changing the weather, creating famines in Ethiopia and more.
The problem is technically fairly easy to fix. The bigger problem is that people dont want to change. They dont want to give up their LED-tv, their x-box, their car, vacations to other warmer latitudes, their shopping, eating meat etc. Do you want to give all that up?

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