http://wattsupwiththat.com/2011/03/24/th...
Probably because it is such a gradual process. We know that mankind can affect the arability of land, but that takes generations and is impacted by a lot of natural forces as well. For example, a study released not long ago found that in Iowa agriculture, 8 inches of topsoil in the State have eroded due to farming in the last 100 years. However, there is about 3 feet of topsoil on average state wide. That means there is another 200 years of agriculture at the pace of the last 100 years before Iowa is depleted.
In other instances, the consequences of our actions are more immediate and apparent, sometimes occurring over the course of a single lifetime-in Pennsylvania, for example, it is said that the forests were clear cut in 75 years; in the iron-rich ranges of Lake Superior, the best ore was depleted in about the same amount of time...and the environmental consequences were more pronounced and rapid than the transition from productive land to desert.
So that's where the emphasis and publicity goes...to the more immediate consequences. Short term environmental fixes that have impacts on longer term changes. Like fixing a car-you're not necessarily thinking about still being able to use the car in 30 years when you fix something that breaks, you're thinking about being able to use it now. On the other hand, if you take better care of it now it is going to last longer and be more useful to you or be worth more in the long run. Some people fix them, other people just run them until they drop and let the next person worry about the junk they leave behind.
Link to this desertification would be nice, perhaps Climate Realist would like to provide one?
Couldn't wait so looked for myself, guess what?
Desertification is mainly caused due to negligent human activity. Indiscriminate chopping of trees has led to global warming and soil erosion. Allowing animals to overgraze in particular regions will cause irreparable damage to plants. Decrease in flora would lead to a decrease in rainfall in the region causing droughts and famines.
Think you'll find that in a lot of cases deserts are retreating, for some reason the warmies are not in favour of this.
Greening of the world and they don't like it, I do.
Sahara Desert Greening Due to Climate Change?
James Owen
for National Geographic News
July 31, 2009
Desertification, drought, and despair―that's what global warming has in store for much of Africa. Or so we hear.
Don't pay any attention to the denialists. Global warming results in fewer clouds. Fewer clouds means less rain.
http://www.climate4you.com/ClimateAndClo...
Less rain means more droughts and more deserts.
Government should take action against this.
Because the facts obviously don't support the destruction of this world by the environment.
"I used to be a lumberjack in the Sahara Forest."
"But the Sahara is a desert."
"Yeah, now."
Many against the global warming, claim is nothing more than mother nature cycle, what about desertification then? Which is clearly human the one who deforest and other man involve method to increase spread of desertification.
