View Single Post
  #5 (permalink)  
Old 11th-March-2008, 10:16 AM
Windguy's Avatar
Windguy Windguy is offline
Forum Hermit
 
Join Date: Jun 2007
Posts: 1,609
Windguy is a jewel in the roughWindguy is a jewel in the roughWindguy is a jewel in the rough
Default

Quote:
Originally Posted by Wowbagger View Post
Glogal warming will prove to be more of a great thing than a bad thing, because of the water cycle. More heat equals more rains. It's very simple. Rain forests are that forests that holds the most biomass and biodiversity. As the rain in rain forest suggests, there's a lot of rain in rain forests. While vegetation needs a lot of water, vegetation reject a lot of water also. Because of respiration(6 CO2 + 12 H2O → C6H12O6 + 6 O2 + 6 H2O), plants recirculate water and provide water for more plants. Deforestation stop this recirculation of water, that's why it's a major problem.
Add that to a warm ocean and there is the mix to help create the 1000 year drought Australia had for the last 7 years. I'm not denying AGW, I just believe we have seen more than just greenhouse gas produced conditions based upon deforestation mixed with warmer oceans.

As you saw from Bored Wombat we have now a bad mix, high CO2 that helps lower plants H2O evaporation by plants evolving with less stomata (they don't need the rest to capture enough CO2). Warmer oceans and deforestation.

Because of the warmer oceans we now have less of a method using cold ocean winds to force rain out of the skies. Meaning higher humidity and less evaporation and rain.

The slowing down of the evaporation and rain cycle can be the biggest problem we are facing. And it is planet wide since we've been cutting down trees for the last 10000 years.

A thing that I have just written for evaluation before lobbying.

Quote:
Speeding up Evaporative Cooling to Minimise the Symptoms of Climate Change

The only real attack on climate change is a three pronged attack. One is to lower CO2 emissions, two is to help remove CO2 from the atmosphere and three is to minimise the symptoms of climate change until it is under control. What is not considered with global climate change is there is local climate change taking effect all over the planet as well. One such local climate change is occurring on the east side of Australia due to deforestation. By local and global climate change multiplying together the east coast of Australia has been quite badly affected over the past 8 years and even though we have a slight respite from La Niņa, even the July floods in 2007 can be predicted by adding both effects together. So this as a method of minimising the symptoms of global climate change quickly by changing the local climate change.

Basic Facts

The lower the temperature difference between ocean and land winds, the less clouding and rainfall occurs and the higher the humidity before clouding and rainfall occurs
The higher the humidity, the lower the evaporation rate
The more trees the higher the evaporation rate
The higher the humidity, the higher the overall temperature
The lower the evaporation rate the higher the overall temperature
Constantly high humidity creates clouding of a night time and clear skies of a day time, meaning higher temperatures further still

Global climate change is quite easily explained, but how it causes drought and excessive rainfall is by the heating of the ocean creating a less of a difference between the cold air from the ocean meeting the warm air of the land forcing the moisture out as rain. Because the humidity is not forced out as easily, it slows down the evaporative cooling cycle since it is based upon the percentage of humidity in the atmosphere. The extra humidity is also a cause of extra heating even though it is only a by-product of increased carbon dioxide in the atmosphere. Flooding occurs by combining dry grounds and raining from higher humidity levels since the oceans colds winds are not forcing the humidity out.

Local climate change can occur by many different ways, the island heat effect is one such effect that denialists have used to explain the USA's temperature increases on their weather stations. The main local climate change taking effect in Australia is deforestation over the last 200 years. Trees are known to evaporate more water than even lakes due to the surface area of the amount of leaves they have. So the more trees cut down, the less evaporation occurs, the less evaporative cooling over the land, the slower the evaporation cycle occurs and the more droughts and flooding that will occur. Because of the less evaporative cooling we will get hotter more humid days than ever before.

As you can see both multiplied together creates a more drastic result such as the "1000 year drought" we had, and the excessive rainfall in July. Current events are only caused by a major la Niņa due to the excessive melting of the Arctic in 2007. Those conditions can be emulated by a couple of plans creating a far better local climate change that may also help alleviate a fair bit of the effects of global climate change upon Australia.

The Plan

The first is simple, start planting trees, and lots of them. We need to speed up that evaporative cooling cycle, so the more trees, the cooler the land and the more rain. Besides that the trees can go towards crediting Australia's emissions.

The second is to place nets above the water in the ocean near the coasts where the waves splash them, there can be additional apparatuses that would help splash the nets. The wind passing over the nets force evaporative cooling on the wind. The wind then gains a greater air temperature difference between the land and the ocean and helps force out the rain. The reason why we need to create these nets is to increase the oceans surface area for evaporation.

These will lead to lower Australian temperatures, greater and more evenly spread rainfall over the duration of the year. Neither should be high maintenance and the trees are all okay, but if we see any forms of problems concerning the evaporative nets then they are just as easily pulled down.

Faster evaporative cooling can also lead to helping radiant heat leaving the atmosphere by transferring the heated molecules into the upper troposphere before radiating therefore giving the radiation more chance of leaving the planet. So by speeding up the evaporative cooling cycle we can also slow down the carbon dioxide global warming taking place which the oceans capacity for heat energy has slowed down our climbing global temperatures. Based upon the Vostok ice cores, we should be at 1.4 Kelvin increase in global temperatures rather than the 0.7 Kelvin we are at now. So evaporative cooling will help extend further the slow build up of energy in the ocean. Based upon the fact the ocean has absorbed 14.5*10^22 joules of energy since the 1950's (the NOAA website). Besides that, higher rainfalls can increase the rate at which carbon dioxide is dissolved into the ocean.

I am not an expert but I believe by diverting funds from desalination plants and the buying of water permits to netting and tree plantation, we would gain a far greater guarantee of drought proofing Australia. It is also a far more natural solution.
__________________
"Natural climate forces can not be underestimated, but no climate model produced can show the speed of the melting in the Arctic that has occurred without adding human contributed emissions." A Physicist from the U.S Army.
http://www.theage.com.au/frontpage/2.../frontpage.pdf

Last edited by Windguy; 12th-March-2008 at 09:30 AM.
Reply With Quote