Browsing articles tagged with "global temperature Archives - DirtyAmmo"
Jul 25, 2013
Zaid

HUMAN CAUSES OF GLOBAL WARMING AND THEIR EFFECTS ON MOTHER EARTH

In the past few decades, the issue of changing global climate has been transformed into a dilemma. The primary way human contributes to this global warming is by burning fossil fuels. This combustion of fuels leads to increased amount of carbon dioxide emitted in the atmosphere, which in turn leads to increased Greenhouse Effect. Of course, the more energy used, the more greenhouse gases are emitted; the more humans cause global warming. Perhaps, it is rightly quoted “No animal has contributed to global warming as significantly as man has.” Some of the chief activities that contribute to the global warming are:

 

When You Drive

A large portion of carbon emission is attributed to the burning of gasoline in engines of vehicles. The combustion of gasoline releases nitrous oxide too, which is again a greenhouse gas.

 

When You Eat Meat and Exotic Foods

Eating food that is shipped long distances, adds to greenhouse gas emissions as it travels over 1000 miles before reaching you. Eating beef and drinking milk also adds to greenhouse gases, since cows emit significant amounts of methane, a greenhouse gas even more efficacious than carbon.

Land conversion

When farms and forests disappear, the land loses the ability to absorb greenhouse gases, and emissions from other activities have an even greater effect.

 

Increasing temperature of the Earth

 

The reason why we remain concerned about the above mentioned situation is that the effects of global warming on our earth are devastating. The prominent effects include:

  • Rising temperature
  • Drying of the rain forest
  • Melting of the glaciers
  • Increased sea level
May 14, 2012
Julia

What is Global Warming?

The term Global Warming refers to the gradual increase in temperature of the atmosphere and oceans on the Earth. Global warming has been detected at present, in addition to its continued growth which is projected in the future.

A review of the plot of land surface temperatures of the past 100 years, was an increase of about 0.8 ° C, and most of this increase has been in the past 30 years.

Still, most of the scientific community says there are more than 90% certainty that the increase is due to increased concentrations of greenhouse gases from human activities, including deforestation and the burning of fossil fuels like oil and coal. These conclusions are supported by the science academies of most industrialized countries.

The projections from climate models were summarized in the Fourth Report of the IPCC (Intergovernmental Panel on Climate Change) in 2007. They indicated that global temperatures will likely continue to rise during the twenty-first century. The increase would be between 1.1 and 2.9 ° C in the lower emissions scenario, and between 2.4 and 6.4 º C in higher emissions.

An increase in global temperatures will result in changes as already being observed worldwide. These changes are:

  • Rising sea levels
  • Changes in the pattern and amount of precipitation
  • Expansion of subtropical deserts

The temperature increase is expected to be greater at the poles, especially in the Arctic and will see a retreat of glaciers, permafrost and ice in the seas.

Other effects include more frequent extreme weather, including droughts, heat waves and heavy precipitation. Extinctions are expected due to temperature changes and variations in the crop yield.

Experts hypothesize that if the increase in global average temperature is higher at 4° C compared to preindustrial temperatures in many parts of the world, the natural systems can not adapt and therefore can not support their surrounding populations. In short, there will be no natural resources to sustain human life.