Wht is the cause of climate change?

Question

answer asap

Answer 1

Some gases ("greenhouse gases") let sunlight in, which warms the Earth, and then block that heat from leaving. That's the "greenhouse effect", and it's a natural thing, mostly caused by water vapor.

Man is making excessive amounts of greenhouse gases, mostly by burning fossil fuels. That causes the delicate natural balance to go out of whack and the Earth warms. That's global warming.

Nice animation:

http://earthguide.ucsd.edu/earthguide/di...

EDIT - This animation is from top scientists at the Scripps Institution of Oceanography, University of California at San Diego.  End EDIT

Solar variations played a role in the distant past (thousands of years ago), but not recently.  Proof:

"Recent oppositely directed trends in solar

climate forcings and the global mean surface

air temperature", Lockwood and Frolich (2007), Proc. R. Soc. A

doi:10.1098/rspa.2007.1880

http://www.pubs.royalsoc.ac.uk/media/pro...

News article at:

http://news.bbc.co.uk/1/hi/uk/6290228.st...

Answer 2

I am 77 and there have many try to control the weather and they all failed. I have Sean a lot of weather and it is about the same.

Answer 3

Carbon dioxide emmisions seem to be having profound influence, creating a greenhouse effect.

Answer 4

Climates change because weather patterns advect air around the world.  These airmasses undergo a myriad of changes due to orographic lift and  a host of other effects.

It is far too simple to that say that global warming is exclusively manmade.

Bob... I don't know where to begin but using childish depictions of the greenhouse effect actually mischaracterizes the process and that type of illustration is junk science.  Because basically,   it is oversimplified and not true..

Answer 5

Changes in the heat output of the Sun causes the temperature of the climate to increase.

""Global warming results not from the emission of greenhouse gases into the atmosphere, but from an unusually high level of solar radiation and a lengthy - almost throughout the last century - growth in its intensity," Abdusamatov told RIA Novosti in an interview. "

"Instead of professed global warming, the Earth will be facing a slow decrease in temperatures in 2012-2015. The gradually falling amounts of solar energy, expected to reach their bottom level by 2040, will inevitably lead to a deep freeze around 2055-2060," he said, adding that this period of global freeze will last some 50 years, after which the temperatures will go up again.

"There is no need for the Kyoto Protocol now, and it does not have to come into force until at least a hundred years from now - a global freeze will come about regardless of whether or not industrialized countries put a cap on their greenhouse gas emissions," Abdusamatov said. "

Answer 6

global warming n burning of fuels is d main cause.........

n also deforestation which adds cherry to d cake...........

Answer 7

Variations in solar output, sunspot activity, the earth's magnetic field and cosmic rays.

Answer 8

well, when its sunny, the water from sea get evaporated, causing clouds toform, then they pop and rain falls out!, this iscaused by polution, in the air mixing with oxygen, making it hotter, i think!

Answer 9

It's a natural phenomenon.  The earth has been cooling and heating up for millions of years.  I don't believe it has anything to do with man.  During the Middle Ages, the earth went through MWP (Medieval Warming Period) and they didn't have factories or cars back then.

Answer 10

Climate change is basically caused by global warming. Global warming chances the balance in the atmosphere. It is not just getting warmer. The main impact is that currents in the and between the oceans are changing. Also the winds are effected. The results can be seen right now in Burma. Floods, extreme storms and droughts will become “usual” in the future.

Global warming itself comes from enriching the atmosphere with carbon dioxide. This is preventing solar radiation getting back into space. That is because the carbon dioxide produces a layer in the atmosphere. Thru that layer the short wave solar radiation gets on the earth and heats up the surface (of any kind). Irradiation of the hot surface is a long wave radiation that can not go thru that layer and is reflected back. This heats up the earth again and again.

Carbon dioxide comes from burning fossils like oil, gas or coal and the emissions of gases like methane. This comes mainly from animals and rotting waste.

Over the last decades the worlds emissions of carbon dioxide had been much much more than plants and the oceans could absorb. Especially as large areas of (rain) forests all over the world are vanishing (man made) and the population is rising this will not change in the short term.

Answer 11

The work of climatologists has found evidence to suggest that only a limited number of factors are primarily responsible for most of the past episodes of climate change on the Earth. These factors include:

Variations in the Earth's orbital characteristics.

Atmospheric carbon dioxide variations.

Volcanic eruptions

Variations in solar output

Answer 12

Natural fluctuation in the earth's temperature. It has happened for millions of years,it will continue to happen now.

Answer 13

The sun.

This world is solar powered.

Here is truth about global warming:

Global warming is one-half of the climatic cycle of warming and cooling.

The earth's mean temperature cycles around the freezing point of water.

This is a completely natural phenomenon which has been going on since there has been water on this planet. It is driven by the sun.

Our planet is currently emerging from a 'mini ice age', so is

becoming warmer and may return to the point at which Greenland is again usable as farmland (as it has been in recorded history).

As the polar ice caps decrease, the amount of fresh water mixing with oceanic water will slow and perhaps stop the thermohaline cycle (the oceanic heat 'conveyor' which, among other things, keeps the U.S. east coast warm).

When this cycle slows/stops, the planet will cool again and begin to enter another ice age.

Thermohaline cycle:

Warm water is less dense than cold water. One of the ocean currents runs North up the east coast of the U.S.

When this warm ocean water reaches the arctic ocean, it is cooled which makes it become more dense.  The now dense salt water drops to the sea floor and begins its return to the

southern loop of its cycle.

Fresh water from meltoff of the northern ice pack dilutes this sea water which makes it less dense.

The diluted, less dense water drops to the sea floor more slowly which slows the entire cycle.

If diluted enough, this circulation stops entirely.

When the circulation stops, then the planet will begin to cool and enter an ice age which will stop the meltoff.

As the salinity in the north Atlantic increases, the water will once again begin to sink to the sea floor and the cycle will restart and our planet will emerge from its ice age and enter another warm period.

That is happening now.  

It will change.

It's been happening for millions of years.

The worrisome and brutal predictions of drastic climate effects are based on computer models,

NOT CLIMATE HISTORY.

As you probably know, computer models are not the most reliable of sources, especially when used to 'predict' chaotic systems such as weather.

Global warming/cooling, AKA 'climate change':

Humans did not cause it.

Humans cannot stop it.

Answer 14

The accumulation and transference of heat in the atmosphere from the effects of global warming,is what's causing climate change. The ever widening parameters of weather records,shows clear signs of rapid climate change!

http://www.commondreams.org/archive/2007...

http://www.environment.newscientist.com/...