@OP: Just beware of any old statistics - there were lots of dubious statistics published by both sides in the last few years. A lot of reports used old and extrapolated data that had very dubious scientific value. However there have been a lot more credible reports that came out this year.
Carbon Dioxide makes up about .038% of the atmosphere and humans are responsible of 2% of the Carbon Dioxide put into the atmosphere annually. We're talking percent of a percent changes here. It really doesn't have anything to do with what we're pumping into the atmosphere. The big deal, is that the huge carbon dioxide sinks (namely rain forests in South America) are being destroyed due to deforestation by lumber companies. In the initial stage of photosynthesis, trees take in CO2 as their primary source for carbon as they take water in as well to make glucose (their food). So yes, I can honestly say that chances are all of the humans on this planet and all the shit we are pumping into the atmosphere are having little effect.ELITE-UK wrote:
So you can honestly say that all the humans on this planet and all the shit we are pumping into the atmosphere...around 20-40 BILLION tonnes a year is having no effect on our planet?
That's not to say that we should still rely on oil. There are plenty of nasty side effects of gasoline and diesel exhaust (benzene, DEPs, CO, NOx).
Large spikes in methane may in fact be caused by the enormous amount of cow shit in America. Again, vegetarianism ftw... it's good for the environmenthttp://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/atmosphere/greenhouse_effect.html wrote:
The fact that atmospheric gases contribute to the heating of the Earth is not new. A hundred years ago, Swedish scientist Svante Arrhenius Svante Arrheniusbecame the first person to investigate the effect that doubling atmospheric carbon dioxide would have on global climate. Though all atmospheric scientists agree that there is a greenhouse effect, not all agree on the impact that human beings are having on it. In particular, many cannot agree that the present global warming that we are experiencing is a product of human activities. Analysis of ice cores has shown a significant variation in the carbon dioxide content of our atmosphere which has affected global air temperatures since the great ice sheets marched across the continents. Measurements of greenhouse gas concentrations over the last 150 years have shown a steady increase in carbon dioxide with an apparent increase in global temperatures as a result. Research has shown that there has been a 30% increase in the carbon dioxide content since the dawn of the industrial age. This increase is due to a number of activities such as fossil fuel burning, deforestation, and loss of other carbon dioxide "sinks" like wetlands and forests. The burning of fossil fuels releases stored carbon into the atmosphere raising the carbon dioxide content of the air. Forest removal leaves carbon dioxide in the air to enhance the natural greenhouse effect.
Don't forget rice paddy fields.CommieChipmunk wrote:
Large spikes in methane may in fact be caused by the enormous amount of cow shit in America. Again, vegetarianism ftw... it's good for the environment
So i just finished it
10 pages
BF2s is in the sources list
10 pages
BF2s is in the sources list
Grats. Hope you get a good mark for it.