Global Warming Is Happening Essay

There is no debate within the scientific community.The scientific evidence of the global warming is clear.

Most people will benefit from stepping back and looking at the record of actual temperature measurements.

The figure below shows data from 1880 to 2011 on global mean temperature averaged from three sources.

Several modelers ran both cases 1 and 2 described above – one including human-induced changes and one with only natural sources.

This experiment showed that the projections of climate models are consistent with recorded temperature trends over recent decades only if human impacts are included.

Human activities produce greenhouse gases that accumulate in the atmosphere and cause problems our planet faces today.

It is a current increase in temperature of the Earth `s atmosphere, water, and surface.This experiment has been performed many times using climate models.A good example is the analysis described in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.In January, a group of scientists, including those from the United States, Australia, France and the Netherlands, summarized reasons for their skepticism and opposition to findings of the UN’s Intergovernmental Panel on Climate Change.They insist that evidence is lacking to show the world is warming. Nordhaus, Yale professor of economics, they maintain that delaying action on climate change for 50 years would impose no serious economic consequences and could even offer benefits to less developed nations as they catch up with developed economies.One of the reasons that drawing conclusions on temperature trends is tricky is that the historical temperature series is highly volatile.The presence of short-term volatility requires looking at long-term trends. Suppose an analyst says that because real stock prices have declined over the last decade, which is true, it follows that there’s no upward trend.We don’t need complicated statistical analysis to see that temperatures are rising.Furthermore, they’re higher during the last decade than they were in earlier decades.Global warming can do more than just melt polar ice and change weather patterns throughout the world.It can change our maps, displace people from tropical islands and cities, and cause famine.

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