The term "global warming" is a specific example of the broader term climate change, which can also refer to global cooling. In common usage the term refers to recent warming and implies a human influence.- One is natural causes such as Bacteria and animals.
- They release a lot of greenhouse gases constantly such asmethane, nitrogen, and carbon dioxide.
- Every time you exhale you add CO2 ththe air.
- Another is geological forces such as Volcanoes.
- The bigges ones are Agriculture, transportation, and industry.
- These heaveadded a lot of greenhouse gases to the atmosphere.
- Thus, Greenhouse Gas Rise appears to be caused by man but, it cant be proven.
Two millennia of mean surface temperatures according to different reconstructions, each smoothed on a decadal scale. The unsmoothed, annual value for 2004 is also plotted for reference.
- Global temperatures on both land and sea have increased by 0.75 °C (1.35 °F) relative to the period 1860–1900, according to the instrumental temperature record. This measured temperature increase is not significantly affected by the urban heat island effect.
Since 1979, land temperatures have increased about twice as fast as ocean temperatures (0.25 °C per decade against 0.13 °C per decade).Temperatures in the lower troposphere have increased between 0.12 and 0.22 °C (0.22 and 0.4 °F) per decade since 1979. - In 2005 was the warmest year since reliable, widespread instrumental measurements became available in the late 1800s, exceeding the previous record set in 1998 by a few hundredths of a degree.Estimates prepared by the Worl Meterological Organization and the Climatic Research Unit concluded that 2005 was the second warmest year, behind
Hurricanes And Global Warming:
One of the most common misconceptions is global warming or warming of the
Earth in general causes an increase in hurricanes. Once again we do not have
anough emperical evidence to prove this but, there are alot more factors than sea
surface temperature that influence hurricane growth. A good example is shear.
Shear is the difference in winds at different heights. It doesnt matter how hot the
water is if shear is high, no hurricane will form. This is the case in the tropics most
of the time. Thus, an increase in hurricanes cannot be correlated to global
warming. As for global warming and hurricane intensity, a correlation cannot be
proven. Once again, there are other factors that control hurricane intensity than the
sea surface temperatures such as shear and land.
2 comentarios:
Hello Alex I liked your commentaries about the global warming, the damage that this provokes in the nature especially the production of the terrible hurricanes.
Your blog is very interesting and very important, all should think about what we are doing with our planet and to do just now the correct thing to avoid future natural tragedies.......
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