DO PEOPLE AFFECT THE CLIMATE
for centuries already people have influenced the cilmate ,with desertification,
the Sahara is growing by 7 miles a year .like a fire the hot shimmering edges consuming the vegetation in front
in the Days of the dinosaurs there practically were no desserts,
Spain was deforested to build the Spanish Armada
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Lebanon for the Phoenician trading Fleet
the Sahara originally was tropical jungle
Genghis Khan burned all the Forrest's and filled the wells with sand turning huge territories into dessert
Antarctica ,which today is a ice dessert used to be tropical ,fossilized tropical plants have been discovered under the ice ,
modern civilizaton is exchanging forrests for concrete and tar
and open space mono argriculture ,of which ,in the end a lot of land also becomes desserts (because of irresponsible agriculture using fertilizers
,to many cattle and over grazing ,heavy machinery that compacts the earth and raises the salt ,
over pumping deep carbon aquifiers and the shallow surfice ones. depleting the ground water and when the irrigation stops
the desertification begins.
in North Africa,India,Mexico ,millions of people are effected by land loss and desertification
in china, thousands of what used to be farmers are running for their lives from the dust storms that have burried their towns and turned their lands into dessert,the globe where they were got to hot for them .
and instead of producing food they are now needing it from some where else,and they will drastically effect the world food prices when they start buying water in the form of grains ,at any cost destabalising governments, in some countries ,could be the result
deforestation causing desertification,the desert conditions causing very cold nights and scorching hot days
in recent times thousands of people have died because of exessive heat,usually old people.in India ,Mexico and France,
we are in danger of becoming a dessert planet ,like Arakis in the book Dune by Frank Herbert,
and like Mars
when/if we loose all our bio mass ,we loose the atmosphere ,which protects us from the Sun,so we burn up in the day and become icicles at night
we will have no oxygen ,or potable water
some home truths
politicians and scientists who work for politicians have downplayed the facts because solutions are expensive and means change and change effects many people income,and most of the world is kept in the dark of the real things that are going on.
: i have seen lands that have been turned from jungle into desserts by people in a matter of a couple of years ,because of the slash and burn method used by settlers and expanding agriculture,and i have seen rivers dry up because of deforrestation in many places in Africa and Mexico ,
i live now by the side of a river in Mexico where,in 30 years 5 species of fish have become exstinct .
and part of the year the river is dry this is for longer every year because of over use of water by agriculture and as a result of deforrestation.
there are natural cycles in the planets life
but a lot is influenced by mans existance ,and this is increasing with overpopulation,putting strains on Natural resources and increasing contaminations as well as destructions of essential componants the ensure living conditions for all life forms
as far as the food production is concerned, Global warming or some of its effects are serious,rising seas result in landloss
each degree rise in temperature means 10%crop loss
more landloss because of desertification every year,we have less areble land to produce food ,for an extra 70 million people ,
and there is less and less water (because of deforestation),to irrigate this production ,
and there are less and less farmers to do it..
who are overpumping deep carbon aquifiers
who are plowing more and more unstable lands because they have lost so many million hectares to desertification ,
because of bad farming practises ,such as using fertilizers and heavy machinary or over grazing
RISING SEAS
The northpole is melting ,and we will know it without ice in our life times.
this does not affect the sea level because it is ice that is already in the water.but the melting ice from Green land and the south pole ,are another matter.
Global warming is in theory reversable,but it will mean global co operation between all countries ,and taking into account human nature and the world politics ,it is unlikely that this will happen,
At least not untill we are all in the middle of planetary disastres and it becomes a battle for the survival of humanity every where.
SOLUTIONS
if you want to help the planet ,plant a tree every week ,if everyone on the planet did we we would be able to reverse the destructive processes
reduce carbon emisions,and they are already working on that by alternative forms of energy and regulations on carbon producing materials,aerosol cans,burning rubbish,industrial chimneys,powerplants etc.
the capture of carbon and the production of water and assist the aquiferous manta.
the world bank pays large subsidies for reforrestation to capture carbon and the best tree for this is the Pawlonia
Waterharvesting projects ,such as millions of small dams.to redirect over ground waterflows from the rains into the ground to supply subteranian water supplies.
the protection of existing forrests.
stop building more highways,urban planning to include vegetation stop building cities encourage people to return to the land to conduct their business from there which now has become possible thanks to the internet.
education to motivate people to auto sufficiency by building more home food gardens.
education on environmental awareness
education on family planning to curb over´populaion
Agricultural education and improvements to follow the principals or sustainability and soil management.
more environmental or land ,design to prevent bush fires,such as--fire breaks
,more dams.regulations and control for public behaviour
alternative effeciant public transport to discourage the use of the internal conbustion engine
recicling wastes,limit water use
i am a Permaculture Consultant for the department of Ecology for the regional government in Guerrero Mexico
http://spaces.msn.com/byderule
Source(s) Lester E Brown is the director and founder of the global institute of Environment in the United states .he has compiled a report based on all the satalite information available from NASA,and all the information that has
come from Universities and American embassies WORLD WIDE ,
his little book--a planet under stress , Plan B has been trans lated into 50 languages and won the best book award in 2003.
2007-03-14 18:45:49
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answer #1
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answered by Anonymous
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The earth has gone through warming and cooling cycles for millions of years, so there are natural cycles. There are no firm scientific explanations for why this happens, but lots of hypotheses, including variable solar output, rogue comets, changes in continental configurations, volcanism, changes in the tilt of the earth's axis, and so on and so on. Probably a bit of all of the above.
We've thrown a lot of carbon in the air, which contributes to some degree or other to warming, and we've thrown a lot of other pollutants (aerosols and soot) into the air which contributes to some degree or other to cooling. Nature also does the same. Thirty years ago the concensus was that the coming ice age was all mankind's fault, and now the concensus is that global warming is all mankind's fault. I'm sure that neither of these are strictly true.
2007-03-13 22:26:21
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answer #2
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answered by Rando 4
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Both, its a natural process and people's actions too. People have made global warming much more worse, especially in the last 50 years. People have created more green house gases, raising the world average temperature higher than usual, which causes many global warming problems such as climate changes.
No matter what you hear about global warming being true or not, its an issue we all need to act on to cut down the increasing greenhouse effects. It is up to us to save the future.
2007-03-13 21:03:55
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answer #3
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answered by =P 6
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It's 95% natural 5% man made. Too much hysteria. Even the IPCC *summary*... not the full report ~(the full report contains data that contradicts the summary) ~ calmly estimates that the world's seas in this century would rise a maximum of 23 inches - this is lower than the estimates given during Kyoto. Why the change? It comes down to these Climate models and how well we have managed to quantify all the important variables. The Inconvenient Truth that the Warming Chicken Little's can't get around is that climate models are just scenarios. And have yet to prove that they closely mimic our actual climate. Are all relevant influences fully understood? Is there additional data that needs to be integrated into the model. Here's an example of what I mean. The current models claim to account for changes in the Solar effect buy accounting for the Sun's radiant output. But what has been made recently clear is that not ALL aspects of solar output are accounted for. It seems that Changes in the Sun's Magnetic Field determine how many cosmic Rays strike the Earth's upper atmosphere. This controls cloud formation, and consequently impacts on the Earth's climate. for a more detailed reading of the Cosmic Ray issue please review the underlying link...
2007-03-13 21:25:07
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answer #4
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answered by Anonymous
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Intensified global warming is irrefutably the fault of "US." (Pun intended.) However, one could argue that by virtue of entropy, and a few of the Seven Deadly Sins (Greed, Gluttony, etc.) our own poisoning of the very environment in which we live IS a "natural" cycle.
It is our nature to ultimately be doomed, replaying our mistakes over and over and over. Humans are ever-evolving, but ultimately still pretty thick.
This is just my opinion (and that of millions of others) so you can take it or leave it :)
Save a tree: EMAIL!
2007-03-13 21:13:57
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answer #5
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answered by Blixa 3
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The "greenhouse effect" is mostly natural and caused mostly by water vapor. It's essential to our civilization.
"Global warming" is excessive greenhouse effect mostly caused by man's production of carbon dioxide. It's very dangerous to our civilization. Rich countries will spend a huge amount of money coping. In poor countries many people will die of starvation due to damage to agriculture. We need to reduce man's contribution to the greenhouse effect.
More info here:
http://www.pewclimate.org/global-warming-basics/
http://www.ipcc.ch/SPM2feb07.pdf
Skeptics cite individually the few scientists who disagree. But the above is the position of the vast majority of climatologists, because of the data the second website. Proof:
http://www.sciencemag.org/cgi/content/full/306/5702/1686
2007-03-13 21:18:11
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answer #6
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answered by Bob 7
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It is a natural cycle, but pollutants have encouraged the results.
2007-03-13 20:57:56
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answer #7
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answered by Anonymous
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Nobody can state definitively one way or the other, since a controlled experiment is impossible. But I feel it would be the height of irresponsibility not to make all the changes we can to reduce our impact on the environment.
2007-03-13 20:53:28
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answer #8
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answered by poorcocoboiboi 6
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This particular episode of global warming is too fast because of the actions of humans.
2007-03-13 20:52:57
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answer #9
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answered by ecolink 7
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its a naturall cycle. humans give themselves to much credit, thinking we could cause a huge climate change.
theres 189 tons of co2 put out intotthe atmosphere each year humans put in 6 tons a year.
2007-03-13 20:58:13
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answer #10
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answered by D-Ray 2
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Start w/ CFC-our fault if your playing the blame game
2007-03-13 22:05:50
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answer #11
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answered by RayM 4
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