do you really think global warming is from us and not just from nature?

Answer 1

Global warming is a natural occurence. The earth is constantly warming and cooling. The earth warmed by 0.6*C over the last century, but that warming followed several centuries of cooling. If the earth cooled for several hundred years, why should we think that warming for one hundred years is bad?

Take a look at the study linked up below. It shows temperature reconstructions over the last 10,000 years from ice core data in both antarctica and greenland. The data shows that antarctica has warmed and cooled to about 2*C above and below current temperatures constantly over the last 10,000 years. The greenland data shows that greenland was warmer than present for MOST of the last 10,000 years.

On a larger scale, the earth has been in ice age periods for only 1/3 of the last billion years (including the present ice age period.) If the earth continues to warm, it will get back to its "normal" condition of having no major glaciation.

Answer 2

In the past it's always been nature that has caused global warming and cooling.

We can use various techniques to look back at the climate of our planet for a little over half a billion years and it's true to say that millions of years ago temperatures were considerably higher than they are now and so too were levels of greenhouse gases.

So, we have a pretty good idea what our planet has gone through over a very long period of time but what we're seeing now is unlike anything that's happened before.

Temperatures are rising many times faster than their natural rate and this is caused largely by the 'greenhouse effect', the blanketing of our planet by greenhouse gases. We know how these work and why they retain heat so it's not hard to duduce that increased greenhouse gas emissions lead to global warming.

Nature too has a part to play and even if humans didn't exist the planet would still be warming but only by a very small amount each year.

The question of how big a role humans play in the current warming has been addressed many times and there have been several very different methods used to arrive at a figure. You'd expect that the results would vary widely but they don't - all methods come to the same conclusion which is that humans areresponsible for upwards of 80% of the current global warming.

Answer 3

I believe that global warming is from humans and also from nature. Human beings are the ones who have caused a big part of the global warming problems. It has alot to do with the way that we live.

Answer 4

I believe we are definitely aggravating the problem with the co2 we emit through the burning of fossil fuels, however there is evidence that mars temperature has risen over 2 degrees over the past 20 years. I think that solar activity has a good deal to do with the problem after all 15,000 years ago there were glaciers down to the middle of the united states, with mastadons and sabre tooth tigers roaming the plains, of course there's global warming, CO2 has a role, i think it's morally irresponsible not to do anything we can to mitigate the damage this problem poses.

Answer 5

Global warming is from us. The more technology that puts out emissions we get, the more global warming increases. This can't be a coincidence. With the tons of CO2 a single human can emit, and the CO2 build up, is obviously directly related to human activity.

Answer 6

It can't be a coincidence that the concentration of CO2 in the atmosphere has increased dramatically since the beginning of the industrial revolution, and that the burning of fossil fules emits CO2 into the atmosphere. If you don't believe that CO2 causes global warming then I can't help you.

Answer 7

some still believe that nothing is wrong ,they will also be convinced when the price of food and beer hits the roof ,because of third world problems in food production and Global potable water shortage

are We responsible ?is it the Sun?
or is it God who wants to punish?
or is it Gaia who wants to clean some parasitic infestation?
who cares ? that is not important any more

WHAT IS -is that we are gonna be in trouble

The Earth has many problems because of man
this is undeniable ,how much we are responsible for Global warming is debateble ,But there is a definate change in Global temperatures that is affecting nature in a bad way.

Agriculture and expanding populations and its effects are the planets biggest enemies

this text only covers some aspects of Climate change ,i.e.effects of deforestation and subsequent man made desertification ,because of irresponsible farming using chemicals ,over pumping carbon aquiferrs,over grazing and deforestation

water and air polution such as caused by
industrial contamination ,the contaminating effects of the cities(the internal combustion engine) ,are other stories,

and all of these are also man made ,such as the high industrial chimneys pumping contamination into the clouds and the burning of tires,some of this polution has been found in the ice in the polar regions

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

the thinner ozone layer helps to speed this up.and this is caused mainly by air polution ,also as a result of mans actions

in North Africa,India,Mexico ,millions of people are effected by land loss and desertification and some have died as a result,

And now many animals are becoming sick because of changes in temperature ,
vital links in the food chains are disapearing affecting other species further along in the chain

90% of the feral (wild) bee population in the United States has died out.

In the Netherlands bee diversity is down 80 percent in the sites researched, and "bee species are declining or have become extinct in Britain."

wildflowers that depend on pollination have dropped by 70 percent

we are witness to a mass exstinction ,for the first time since the dinosaurs, of the earth's estimated 10 million species, 300,000 have vanished in the past 50 years. each years, 3,000 to 30,000 species become extinct.

everything is happening so fast it is not possible to monitor things any more.

,the Sahara is growing by 7 kilometers a year
and most of the desserts we know are a results of mans actions ,and they are increasing ,not getting less ,in the dinosaurs days ,there were few desserts.

collectively this planet is drying up ,

each degree rise in temperature means 10%crop loss

and there is less and less water (because of deforestation),to irrigate this production ,
and there are less and less farmers to do it..
Arable lands and their farms are lost all over the globe. Many farmers sons abandon farming and head for the cities.

Northern China is drying up, what once were millions of food producing people, are now hungry refugees ,running for their lives from the all consuming dust storms.
This will have a great effect on world food prices when they start buying at what ever cost, to feed their people.

The farmers that are left have to feed some 70 million more people than the year before but with less topsoil.

Over the last half century,
Population growth & rising incomes have tripled world grain demand from 640 million tons to 1,855 million

In the near future the global farming community will not be able to feed every body ,food prices will continue to rise. .

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

here are a 100 ways to help
http://www.eco-gaia.net/forum-pt/index.p... Source(s) http://www.greenpeace.org/international/...

http://news.bbc.co.uk/2/hi/science/natur... 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 many languages and won the best book award in 2003

Answer 8

Every scientist will tell you the truth. Only politicians and pundits have agenda's.
The greenhouse-effect shows how our atmosphere will trap heat. If you add carbon dioxide to any experimental model, the greenhouse-effect is increased.
Guess what's emitted from all those cars? Carbon Dioxide.


Now, you can go to the front of the class!

Answer 9

yes global warming is from us because when we use our cars exhaust it tares the ozone apart and thats why the weather is crazy. polar bears are losing their habitats because the temperature goes up every year 1 degree and the polar bears are begining to die because of the temperature,

Answer 10

i believe we have a little to do with it but no where near what these activist say i think there full of themselves how am i supposed to believe what they say the temperature will be in twenty years when my weather man cant even get the weather right tomorrow half the time think about it.