Do the Facts Support the Theory?
Now that you have read the arguments for and against the theory of global warming, this post will present the facts and evidence so that you can make your own informed opinion.

Evidence Towards Climate Change:

The best evidence towards the theory of global warming are the trends over time. Trends in climate change and ocean levels lead to increase in atmospheric carbon dioxide and other greenhouse gases. This in turn follows the pattern of agricultural and urban development since the Industrial Revolution.
Ruth Curry of the Woods Hole Oceanographic Institution found that melting ice was changing the water cycle, which in turn affects ocean currents and, ultimately, climate.
"As the Earth warms, its water cycle is changing, being pushed out of kilter," she said. "Ice is in decline everywhere on the planet."
National Oceanic and Atmospheric Administration has recorded increases in carbon dioxide, methane, and nitrous oxide during the last century, using collected data and geological evidence. Carbon dioxide levels alone rose 36 percent since about the beginning of the 19th century. Similar data exists for surface temperature. In addition, glaciers and mountain snows are rapidly melting. For example, Montana's Glacier National Park now has only 27 glaciers, versus 150 in 1910. In the Northern Hemisphere, thaws also come a week earlier in spring and freezes begin a week later.

Scientists say that the most compelling evidence lies in the most stable or environments, the Oceans. The U.S. Environmental Protection Agency says coastal shorelines erode one to four feet each year. This may not sound like much, but it does represent real evidence of change. An example of this is found with the Cape Hatteras lighthouse in North Carolina. This lighthouse was built in 1870, when it was built it was 1,500 feet away from the shoreline. In 1987, the lighthouse was a mere 160 feet away from the shoreline. This then forced them to be relocated by the national park service in 1999. The U.S. has a more than 95,000 miles of shoreline. Over 50 percent of U.S. citizens live on this shoreline. This erosion of shoreline poses a big threat on the U.S.

Evidence Against the Theory:

Svante Arrhenius (1859-1927) was a Swedish scientist that was the first to claim in 1896, that the gases that we produce everyday would one day lead to the warming of the earth. He and Thomas Chamberlin calculated that human activities could warm the earth by adding carbon dioxide to the atmosphere.
There is no significant evidence towards climate change that supports a catastrophic change in our world’s temperature. This warming could just be the natural warming of our earth because we are still warming up from our last ice age. Over 17,000 scientists have already signed a petition against there being evidence toward global warming.
Fred Singer said: “We have a greenhouse theory with no evidence to support it, except a moderate warming turned into a scare by computer models whose results have never been verified with real-world events.”

These are some simple arguments that have been made against it:

  • It is argued that global warming is a minor issue because of which major issues like HIV/AIDS and poverty are not devoted their deserved time and resources.
  • Unreliability of computer climate models. It is argued that these models are not able to predict tomorrow’s weather. So how can they predict long-term climate change?
  • Newspapers sensationalize global warming in order to sell. It is argued that newspapers distort the picture of global warming when actually that is not the case.
  • It is argued that we don’t have long term historical records of weather.
  • Water vapor plays a major part in global warming. It is argued that man made emissions like carbon dioxide has only minor effects.
    Global emissions have increased significantly by
    Global emissions have increased significantly by
  • The global warming is a natural phenomenon.
  • Man has no role to play in it. Only our environment is responsible.
  • The temperature increase is very small especially when it is spread over a century.
  • The earth was warmer before. That did not have harmful consequences on humans.
  • The increase in temperature will help plants grow in currently cold and uninhabitable areas.
  • The increase in the level of carbon dioxide will stimulate plant growth.
  • Steps to limit global warming will decrease economic growth and hurt the poor.
  • People in fossil fuel industries will lose their jobs.
  • Climate change has been more rapid in the past.
  • Rise in carbon dioxide levels has always come after a temperature change and not before.
  • The upsurge in solar activity in the sun has caused global warming.

In conclusion, global warming, or climate change, is a very complicated issue that is commonly debated. Some feel that evidence that global emissions have increased significanty by 36% from the beginning of the 19th century has had a direct impact on temperatures. Yet, over 17,000 scientists that have signed a petition stating their disbelief of the global warming theory. So is global warming really happening or not? The links that follow will supply you with additional information so that you can make an informed decision regarding you thoughts on this controversial theory.

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