Is global warming really man-made?

Question

Is global warming really man-made? because if you look at the history of the global temperatures, it has a natural cycle to warm up and cool down. thats what happend on all iceages.

Answer 1

I don't think that it is manmade because a thing like this heat rising happened a few years ago and then it leveled out.

Answer 2

it is! it all do with the greenhouses gases co2, nitrogen and something else. but these build up in the atmosphere causing bad effects such as polar ice caps melting, hotter summers, etc.

the greenhouse gases do come from car fumes, deodorant cans, etc

find out more from the movie: the day after tommorrow or look it up on wikappedia!

Answer 3

No, absolutely not. Ok, so maybe emissions increase it a teeny tiny percentage, like below 1%, but the greatest influence is by far the sun. If you take a moment to stop and think about it, it seems obvious doesn't it. The sun is what heats the earth, isn't it? So a warmer sun would mean a warmer earth, right? And as for CO2 emissions, only 3% of all of the CO2 in the atmosphere is anthropogenic (manmade), and I'm sure by now some people have heard me say it before. It's about the fiftieth time. Also, one more thing, CO2 rise has been measured in the past to follow temperature rise, not cause it. In the Ice Age, there were ten times as much CO2 in the atmosphere than there is now, left over from the warm period before that. No, I really really don't think that global warming is manmade, but please, research both sides in depth for yourself, if you haven't already. (sidenote to Bob, the answer above mine, the scientific data isn't overwhelming, its a lie. For example, in the IPCC's "hockeystick graph," where it shows todays temperatures spiking, while the rest of the measured temperature is stable, is a complete phony, and has been proven to be such by notable scientists. It completely erased the Medieval Warm Period and the Little Ice Age. That was extremely dishonest of them, and is just one example of many things like that they've done. and also the "swindle" movie, or "The Great Global Warming Swindle," was awesome, and totally exposed all the ridiculous arguments of the alarmists. If you want to watch it, it's available on Google movies, or at least used to be....)

Answer 4

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.

this text only covers some aspects of Climate change ,mainly agriculture i.e.effects of deforestation and subsequent man made desertification

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

climate change is caused in great parts by desertification ,and most desertification is caused by man

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 that "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

Global warming could be slowed down to some extent,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,instead of just some third world countries Source(s) here are a 100 ways to help

http://www.eco-gaia.net/forum-pt/index.p...

http://www.greenpeace.org/international/...

http://news.bbc.co.uk/2/hi/science/natur... Source(s) (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 5

it is a natural process which is sped up by man made processes

Answer 6

Yes.  It's been proven by overwhelming scientific data this this warming is quite different.  It's mostly caused by us.  Three reasons, with solid support, most important first.

There's a large amount of peer reviewed scientific data that says that.  Short and long summaries.

http://www.globalwarmingart.com/wiki/Ima...

http://www.ipcc.ch/SPM2feb07.pdf

Science is quite good about exposing bad science or hoaxes:

http://www.cs.cmu.edu/~dst/ATG/polywater...

There's a large number of people who agree that it is, who are not liberals, environmentalists, stupid, or conceivably part of a "conspiracy".  Just four examples of many:

"I wasn’t convinced by a person or any interest group—it was the data that got me. I was utterly convinced of this connection between the burning of fossil fuels and climate change. And I was convinced that if we didn’t do something about this, we would be in deep trouble.”

Vice Admiral Richard H. Truly, USN (Ret.)

Former NASA Administrator, Shuttle Astronaut and the first Commander of the Naval Space Command

"Global warming is real, now, and it must be addressed."

Lee Scott, CEO, Wal-Mart

"Our nation has both an obligation and self-interest in facing head-on the serious environmental, economic and national security threat posed by global warming."

Senator John McCain, Republican, Arizona

“DuPont believes that action is warranted, not further debate."

Charles O. Holliday, Jr., CEO, DuPont

There's a lot less controversy about this is the real world than there is on Yahoo answers:

http://www.worldpublicopinion.org/pipa/a...

And vastly less controversy in the scientific community than you might guess from the few skeptics talked about here:

http://www.sciencemag.org/cgi/content/fu...

Good websites for more info:

http://profend.com/global-warming/

http://www.realclimate.org

"climate science from climate scientists"

The swindle movie (and it's "science") is wrong.

"A Channel 4 documentary claimed that climate change was a conspiratorial lie. But an analysis of the evidence it used shows the film was riddled with distortions and errors."

http://news.independent.co.uk/environmen...

"Global cooling" is a myth, it was just a few guys with a theory and no data, like today's skeptics.

http://www.realclimate.org/index.php?p=1...

Answer 7

You are quite correct, the Earth does have a natural warming and cooling cycle. BUT, and it's a big but...man's activity has quickened this process. The warming and cooling of our climate is a gradual process, but what we are seeing at the moment is happening so rapidly, that it has to be down to human activity.  We need to act now and quickly if we are to slow the warming that is already happening, before it is too late to slow or reverse.

Many will try to convince you that it has nothing to do with human activity, it relieves them of their conscience and feeling that they need to chnange their lifestyles...afterall we are creatures of habit and like to be in our comfort zones; that's very understandable...but we cannot bury our heads in the sand, it's happening and it's going to get worse. We need to side with the significant majority of the scientific community on this.

Hmm, sorry about that...will step down from my soap box now. haha

Answer 8

The theory of man-made global warming is false.  Anyone who believes otherwise has not investigated the evidence or is purposely remaining ignorant to the legitimate opposition to global warming.  I have given up an one and a half hours to watch “An Inconvenient Truth” so I ask you to do the same and watch the movie detailing the opposition.

http://video.google.com/videoplay?docid=...  

Another general resource: http://en.wikipedia.org/wiki/Global_warm...

CO2 is not causing the globe to warm the opposite is true, the warming is increasing the atmospheric CO2.  When the world heats it gradually increases the temperature of the oceans which serve as the largest CO2 sink.  As the oceans heat up they release CO2 which is stored in them.  The information comes from the same data Al Gore uses, the temperature always goes up before the concentration of CO2 goes up.

http://www.lavoisier.com.au/papers/artic...

CO2 makes up only .03% of our atmosphere.  Water vapor, another greenhouse gas, makes up 1-4% of our atmosphere, this gas is acknowledged to be the main greenhouse gas.  All human activities combined contribute only 6 Gigatons of CO2 to the atmosphere each year.  Animals, through respiration, decomposition, etc contribute 150 Gigatons of CO2 to the atmosphere.  So humans contribute only a small amount of CO2 to the atmosphere which is already in very small concentrations in the atmosphere.

http://oco.jpl.nasa.gov/science.html This is where my data came from, it is an interesting site, it displays the same graphics as Al Gore in his movie but it tells how low the human contribution is.  So Al Gore is using the same data but coming to a different conclusion, who do you want to believe a politician with no scientific training or the NASA CO2 laboratory, a group of scientists who spend their entire careers studying CO2.

We know the greenhouse effect is real it is a necessary effect to keep our planet at a habitable temperature.  However if our current warming is due to greenhouse gasses it would cause warming in the troposphere , but the troposphere is actually getting cooler.

http://wwwghcc.msfc.nasa.gov/temperature... That points to other explanations to our current warming.

So what is causing our current warming, it is the sun.

http://web.dmi.dk/solar-terrestrial/spac...

http://www.aip.org/enews/physnews/2003/s...

http://www.space.com/scienceastronomy/06...

http://www.sciencedaily.com/releases/200...

http://science.nasa.gov/headlines/y2003/...

The fact that only the earth’s surface is warming points to direct heating from the sun rather than heating due to greenhouse gasses.  Also other planets in our solar system are warming pointing to a common cause of warming, that common cause being the sun.

http://www.livescience.com/environment/0...

http://news.nationalgeographic.com/news/...

http://www.nasa.gov/vision/universe/sola...

http://www.nasa.gov/vision/universe/sola...

The global warming crowd says our glaciers are melting and animals will suffer this is another false claim.

http://www.co2science.org/scripts/CO2Sci...

http://www.nationalcenter.org/NPA235.htm...

http://www.worldclimatereport.com/

the global warming crowd also claims a scientific consensus on the issue, this is wrong in two ways.  One, there is no consensus, this is a false claim to make you believe in global warming by suppressing the opposition.  http://www.oism.org/pproject/s33p36.htm

Second, even if there was a consensus it would mean nothing, science is not politics, you don’t vote on theories to determine their legitimacy.

The IPCC is the main supporter of global warming, their statements are defended blindly by people who don’t want to admit that global warming is not real.  People will claim that they took into account natural sources of CO2, they didn’t.  Take a look for yourself:

http://www.ipcc.ch/activity/srccs/index....  That is the latest IPCC report, read the entire report, do a search of the documents, there is absolutely no mention of natural sources of CO2.  The natural sources have been completely ignored.  Also people will claim that the IPCC took the sun into account in their report, this is not entirely correct, while the sun is mentioned the report it’s effects have not been accurately represented.

http://www.john-daly.com/forcing/moderr....  The IPCC did not take into account the Svensmark factor.  This would greatly reduce the effect of solar radiation on the earth.  Look back up to the solar resources to see the effect of the sun correctly represented.

Also allegations have been by IPCC scientists who disagreed with the IPCC statements.  They say that their research was censored or taken out of the IPCC report.  This is not the first time the IPCC has lied, they forged the famous “hockey stick” graph, which later resulted in a reissuing of the IPCC report.

Quotes form politicians, CEO’s, and others are not proof of global warming, they issue these statements to get votes and customers.  Scientists are able to get published and get time on the media by supporting global warming.  The IPCC continually lies and misrepresents data so they keep their jobs.  

In regards to the precautionary principle that says we can only help if we switch over to alternative energy, this idea is not correct.  While this may seem legitimate it only helps the first world, third world countries can not afford to switch to the more expensive energy options.  Also the US currently spends 4 billion dollars a year on global warming research which could be better spent on research for disease or to fight poverty.  For an excellent example of how the precautionary principle is harmful you do not need to look further than DDT.  This pesticide was cheap and incredibly effective but it was banned because of it harmful effects on egg shells.  Now thousands of people die every year in third world countries because of malaria, a disease that could be easily controlled with DDT.

I hope anyone who believes in global warming they will take a look at the resources I provided.  These resources should convince you that global warming is not man-made, it is caused by cycles in the earths climate.  If you are not convinced I hope you at least take a new look at global warming as an unproven idea.  Remember that global warming is big business for anyone who aligns themselves with it.

I could not go this entire post without mentioning global cooling.  In the 1970’s it was claimed that there was a consensus on the fact that the world was headed into an ice age.  We have seen once before how damaging a false claim about our climate change can be to our world.  Most of the global warming crowd does not want you to know about this scare because it is so similar to the scare today.  Government panels were formed and claimed the world was headed to an ice age, evidence poured in supporting the claim, a consensus was claimed, then the whole issue just faded away.  That is what will happen with the false scare of global warming.

Answer 9

most gobal warming is man made.and some is natural.

Answer 10

It's a natural process but a great excuse to tax us all to the hilt!.  Well done Tony and Gordon - they never miss an opportunity.