what is global warming?

Answer 1

Global warming: The sustained increase in the average temperature of the earth's atmosphere. Human activity contributes to this change through the buildup of heat-trapping greenhouse gases. Over time, this increase may be sufficient to cause climatic change, including raising sea levels, altering precipitation patterns and changing water supplies and crop yields. Global warming could also affect human health, harm wildlife and damage fragile ecosystems.

Answer 2

Contrary to what some believe, global warming is the result of an increase in greenhouse gases being trapped in the atmosphere. These gasses in turn trap heat, causing an increase in the global temperature. Few scientists deny its occurrence, however the extent and cause are up for debate.

Answer 3

Some gases in the atmosphere are transparent to visible light, but block heat. They let sunlight in and block the resulting heat. That's the greenhouse effect. It's exactly like how the glass in a greenhouse keeps plants warm in winter. It's largely natural, desirable, and caused mostly by water vapor.

Global warming is excess greenhouse effect caused by man, chiefly through burning fossil fuels and making carbon dioxide. It threatens to cause very costly flooding and damage to agriculture.

These threads always attract people who claim that global warming is not real. But that's an argument for another place.

Answer 4

In the rest of the world, it largely debated and almost sure scientific issue on which a lot of people are working.

In the US it is mostly a partisan and emotional issue like the famous weapons of mass destruction. Ultimately it is something people believe that can´t be like the last nazis or communists didn´t accept they were wrong all this time.

And everybody is free to believe which one is right:

- 95% of the planet being 90% sure it takes place backed by 99% of the scientific community

- half of the 5% of american population of the planet beeing 100% sure less than 1% of the scientists, mostly from prestigious universities in Nebraska, Kansas, Oklahoma, etc... backed by constantly decreasing number of oil companies.

Answer 5

A catch phrase for the old word interglacial, meaning a warming cycle between glaciations.

It's being used by politicians, hollyweirdos, and others to manipulate behavior of the geologically ignorant - emotional blackmail. Flimflam. That means they want something from you that you'd otherwise have better sense than to give. Hang on to your wallet.

Variations in glaciation are part of the planet's continuing history, long before humans existed.

If one sincerely wants to do something about manmade environmental degradations, developing countries' leadership are who need to be addressed. But do not send me the bill.

Answer 6

global warming is like were cold parts of the world get warmer and every thing starts getting worse and worse!!!!!!!!!

Answer 7

my limited contribution to the answer

Is global warming a man-made menace?

not all 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

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.


in North Africa,India,Mexico ,millions of people are effected by land loss and desertification


in recent times thousands of people have died because of exessive heat,usually old people.in India ,Mexico and France,
deforestation causing desertification,the desert conditions causing very cold nights and scorching hot days

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
(are you seeing more Chinese around interested in agricultural lands ,we do here in Mexico)

,the Sahara is growing by 7 kilometers a year
and all of the desserts we know are a results of mans actions ,and they are increasing ,not getting less ,in the dinosaurs days ,there were no desserts.

collectively this planet is drying up because of bad farming practices like,over grazing and fertilizers,

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.

Answer 8

an increase in the world's temperatures, believed to be caused in part by the greenhouse effect.

Answer 9

It's an industry in itself.
Many people make lots of money by perpetrating this myth.

Answer 10

the increase of CO2 in the air that will kill us all.