Global warming questions?
If this is true, then how can such a small increase truly heat up the planet?
Isn't it also true that plants love carbon dioxide and that in fact many plants species are now growing better and in fact farmers are able to produce more food?
Have natural disasters not increased, and in fact, are the same today as they were 100 years ago?
Isn't Greenland in fact only 4% of the entire world's icecaps?
If the Kyoto treaty works, isn't the goal to reduce the world's temperature by a mere .04 degree Celsius?
And if you do believe in global warming, what specifically are you doing to reverse carbon emissions?
Answer:
So reading some of the answers thus far, it appears many people either cannot read or choose to ignore questions.
Yes it is true that CO2 has risen about 19% as you indicated, and it is also true that such a small rise may cause a minor increase in temperature. But there are also many other factors. Solar flares, more urbanization, more concrete and less unused land, all of these are factors as well.
Most plants have benefited from the increased CO2.
Catastrophes such as hurricanes and tornadoes, and so on, have not increased since the early 1900's, they have stayed the same on average.
Greenland will melt, in about 1000 years. The small amount of water from the melting is not affecting the ocean levels because it is melting so slowly.
Kyoto treaty was and is a joke, enough said. Many countries were required to do very little if nothing at all.
I do not believe in global warming, since it is a theory and never proven. But I do my part to keep the earth clean. I recycle, drive as little as possible, have installed many items on my house to keep in cool/warm naturally, have 30 differnt plant species on my property including 6 shade trees.
yes
be careful,believing is something for religious people
And Global Warming is not a question of belief.
it is something we know
150.000 people dying anually ,and 3500 in Europe alone in 2003,related to Global warming tells us something
3000 species of Animals became exstinct in the last 50
http://answers.yahoo.com/question/index;...
Farmers suffer croploss due to temperature changes (1 degree means already 10% croploss)
the perma frost on the tundras is melting
so are the Glaziers ,the North Pole , Greenland and great chunks of Antarctica have dropped into the sea
We are facing cronic water shortage ,and in India,China ,Africa and Mexico people are forced to drink contaminated water or die of thirst
http://answers.yahoo.com/question/index;...
The Sahara is grows 7 kilometers a year
Northern China is drying up and 2 mayor desserts are becoming one giant dessert
http://answers.yahoo.com/question/index;...
If you want to be more concerned about the Environment here are some tips
http://answers.yahoo.com/question/index;...
These are all the arguments against global warming made by people who don't want to believe it. The ONLY scientists who don't believe in global warming are the ones who work for the oil companies.
Four of the last five years are the four hottest years on record. Yes, temperatures go up and down and now are in the up trend, but they have never risen anywhere nearly this quickly. Yes plants eat carbon dioxide and emit oxygen for -us- to breathe, but rainforests around the world are being cut down at an unprecedented rate.
Hurricanes and tornados have also been a worse problem in the last few years than before.
It wouldn't be that hard to reduce carbon emissions if we ever just decided to do it. Just for one thing, existing hybrid technology could cut our gas use by a third in five to ten years. GW Bush took away govt. funds for developing hybrid technology and put them into hydrogen research, which will take 30 years to show results if at all. Americans use twice as much energy per person as any other developed country, including a dozen or so that have a higher standard of living than we do.
Bush's own Pentagon and CIA have released reports that global warming will be the cause of wars in the next couple of decades! Bush's own EPA reported that global warming was the most serious long-term threat we face. Bush was asked about it at a press conference and said "Oh, that report that was put out by the bureaucrats."
1) Close. Atmospheric CO2 concentration was about 317 ppm in 1960 and is now about 380 ppm.
http://en.wikipedia.org/wiki/image:mauna...
2) Small? That's like a 20% increase in less than 50 years. That's not small.
3) Plants need CO2, but there's already more CO2 than they need. See the little squiggles every year in the graph I linked above? That's how much CO2 plants are absorbing. They don't benefit from any more.
4) No, extreme weather events have increased dramatically over the past century:
http://en.wikipedia.org/wiki/extreme_wea...
5) The Greenland Ice Sheet holds enough water to raise sea levels 23 feet if it melts.
6) The goal of the Kyoto Protocol is not to reduce global temperatures, it's to reduce greenhouse gas emissions. Its goal is only to reduce them by 5% by 2012, which is a very minor reduction. Yet we couldn't even agree to that.
7) I reduce my personal emissions by biking to work, driving as little as possible, driving a Prius, raising my thermostat in the summer and lowering it in the winter, using CFLs, using energy efficient appliances, etc. etc. I also support politicians who make global warming a high priority. In the case of 2008, that's John Edwards, who has a plan to reduce the USA's greenhouse gas emissions by 80% by 2050.
How can such a small increase heat up the planet?
CO2 doesn't directly heat up the planet. It holds heat in that is created by the Sun. It's like putting a blanket on you in bed. Doesn't take much blanket to keep you warm.
Plants and CO2.
Look at this graph.
http://scrippsco2.ucsd.edu/graphics_gall...
The little squiggles are nature doing its' thing. CO2 falls a bit during summer when plants are active, and rises during the winter. The huge increase is us, burning fossil fuels. The plants can't keep up with us.
Man is upsetting the balance of nature. We need to fix that.
It's a mistake to link specific natural disasters with global warming. But heat is the fuel of storms and global warming will generally make storms more intense. But people don't have a good way of measuring storms intensity and the data just isn't good enough to prove that - yet.
If all of Greenland melts, sea level will rise enough to cause hundreds of billions of dollars in damage. No, we won't all die, but it will cost us a whole lot of money.
See this for more answers to skeptics questions:
http://environment.newscientist.com/chan...
And this for a whole lot of scientific data, other information, and nice pictures:
http://profend.com/global-warming/...
Is it true that all trees are chopped down so we cant have oxygen.Is it true that cars are spewing harmful gasses,Is it true that one billion more rooftops are here today compared to 100 years ago.Your sums are ridiculous to justify your argument.The fact is humans dont live in tents now.Did roads and rooftops exist only 2 hundred years ago.One hundred years ago was our planet overrun with such awful selfish polluters as you.So you can go on destroying your home.Stop living in your fairy land and accept dire possibilities.
some gases are opaque to sunlight, meaning the absorb the sunlight and heat up the atmosphere. Carbon Dioxide is one of these. The earth only needs a small change to spiral into heat or cold, it is a very delicate balance. The carbon dioxide content is around 370ppm and it has risen 20% in the past years. I do believe in global warming but can do very little about it because of my age, but i would recommend that you should drive as little as possible, and get a hybrid, or a car that runs on biofuels. good luck hope this helps. (if you are more interested in learning about global warming then i would recommend reading THE DISCOVERY OF GLOBAL WARMING- by Spencer R. Weart
SOME plants are growing better, others are being destroyed already, where CO2 concentrations are even higher.
Many plants optimum CO2 range is between 300 and 550 ppm concentration, before it actually starts becoming a problem, even for plants.
higher CO2 concentrations do allow plants that cause allergic reactions in most people, like poison ivy and the like, to out-compete other plants. No real big deal if those don't bother you, but is a huge problem if they cause you severe reactions.
Even though it may cause some plants to grow better, the fungus they form symbiosis with to help obtain nutrients from the soil, are adversely effected by higher concentrations of CO2. It has yet to be proven that the temporary benefit of some crops, at current CO2 concentrations, outweigh the adverse effects of others, allowing higher food production.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: