An Inconvenient truth?
1. The Earth's climate is Changing?
2.There is Global Warming?
3.The main cause of climate change and global warming is the increase of Carbon Dioxide in the atmosphere due human activity.
Explain in as much detail as you can please.
Answer:
Earths climate is changing...of course it is, its a dynamic system.
Global warming is climate change, thus this is redundant.
As for CO2, my investigations of the scientific literature have led me to a wide variety of factors that may be responsible. Here are 4 of them:
1. The Sun
"We estimate that the sun contributed as much as 45–50% of the 1900–2000 global warming, and 25–35% of the 1980–2000 global warming. These results, while confirming that anthropogenic-added climate forcing might have progressively played a dominant role in climate change during the last century, also suggest that the solar impact on climate change during the same period is significantly stronger than what some theoretical models have predicted."
2. Land Use Changes (urban heat island effect).
"The warming of about 0.3 _C in recent years has prompted suggestions about anthropogenic influence on the earth’s climate due to increasing human activity worldwide. However, a close examination of the earth’s temperature change suggests that the recent warming may be primarily due to urbanization and land-use change impact and not due to increased levels of CO2 and other greenhouse gases."
3. Combo of the Sun and Tectonics
"The current global warming is most likely a combined effect of increased solar and tectonic activities and cannot be attributed to the increased anthropogenic impact on the atmosphere. Humans may be responsible for less than 0.01_C (of approximately 0.56_C (1_F) total average atmospheric heating during the last century."
4. Cloudiness due to cosmic ray ionization
"The influence of solar variability on climate is currently uncertain. Recent observations have indicated a possible mechanism via the influence of solar modulated cosmic rays on global cloud cover. Surprisingly the influence of solar variability is strongest in low clouds <3 km, which points to a
microphysical mechanism involving aerosol formation that is enhanced by ionization due to cosmic rays. If confirmed it suggests that the average state of the heliosphere is important for climate on Earth."
Four different factors, besides CO2.
Real simple:
1) Yes, proven.
2) Yes, proven.
3) Asserted, still unproven.
1)Yes, because of the greenhouse effect
2) Yes, it's risen in the last few years
3) The warming trends completely match the CO2 trends.
I thought that vedeo to be very interesting and the scary part is that it's true. Like the first answer, it's basically all true. And we humans must work together for a better and healthier future for our children. Work on ways in which to conserve energy and resources. Things such as recycling, planting more trees, and turning appliances off when not in use.
Blame the sun for global warming. All planets have global warming.
Global warming on the planet Mars matches global warming on earth.
"These parallel global warmings -- observed simultaneously on Mars and on Earth -- can only be a straightline consequence of the effect of the one same factor: a long-time change in solar irradiance."
http://answers.yahoo.com/question/index;...
No. The scientific data and, because of it, the world's scientists, convince me of the truth of all three. Al who?
The detail is too long for here, I need to give you websites:
The data, with references to the cientific literature:
http://www.globalwarmingart.com/wiki/ima...
http://www.ipcc.ch/spm2feb07.pdf...
The scientists:
http://en.wikipedia.org/wiki/scientific_...
http://www.sciencemag.org/cgi/content/fu...
Only a few planets are warming, so it's not the Sun. The NASA scintists sy that on Mars it's because of giant dust storms.
http://www.nasa.gov/centers/ames/researc...
Good websites for more info:
http://profend.com/global-warming/...
http://www.ucsusa.org/global_warming/sci...
http://www.realclimate.org
"climate science from climate scientists"
Al Gore was involved... it can't be true.
Hi!
1. Historical geological evidence indicates our earth goes through climate fluctuates fairly often, so yes.
2. Current studies seem to show an increase in overall temperatures. In my area I studied with my class temperature charts for the past 100 years and we could actually illustrate the increase in average temperatures. (my class did not know what the outcome would be or that we in effect were studying global warming).
3. Current studies also appear to indicate that human activities in particular, industrialization, have a direct impact in all areas of the environment, including increasing carbon dioxide output. Also, industrialization has wiped out vast rain forests (deforestation) which we all know help to neutralize our atmosphere.
its very apparent that the Earth's climate is changing. you see it before your eyes. its living proof, well, at least here in Thailand it is.
YES there is global warming, all the statistics made me even moe worried.
3. errrr.yeah.
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