Test - findings

Climate Change Science Shows Anthropogenic Origins of Global Warming

The science exploring mans role in global warming is getting stronger. A new study revealed more than two dozen climate “indicators” were revealed in an annual State of the Climate report released which was released on July 10. A related study went further saying man-made global warming is already increasing the likelihood of extreme weather. These are the finding in the State of the Climate 2011 report, published by the National Oceanic and Atmospheric Administration (NOAA) and the American Meteorological Society (AMS).

Global carbon dioxide concentrations which hit a new all-time high of 390 parts per million last year and 2011 was one of the warmest La Nina years on record. In the Arctic, 2011 had the second-lowest sea ice extent on record. Generally speaking the dry regions are getting drier and the wet regions are getting wetter.

The companion climate assessment notes that global warming has already increased the odds for extreme events, including the Texas drought. The 2011 growing season was by far the warmest and driest in Texas history, and the drought was the worst one-year drought on record there as well, costing billions in agricultural losses.

The study concluded that, due to anthropogenic global warming, La Nina-related heat waves are now 20 times more likely to occur in Texas than they were 50 years ago. The overriding theme that emerges from these reports is that we are already feeling the effects of man made global warming and this will only get worse, particularly if we do nothing about it.

© 2012, Richard Matthews. All rights reserved.

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More Scientific Support for Anthropogenic Climate Change

There is increasing scientific support for the relationship between human activities, global warming and climate change. The latest research was published on July 10th, 2012. According to an accompanying analysis in the annual State of the Climate report, compiled by nearly 400 scientists from 48 countries and published in the peer-reviewed Bulletin of the American Meteorological Society.

The report itself remains "consciously conservative" when it comes to attributing the causes of certain weather events to climate change. However, the report’s accompanying analysis titled "Explaining Extreme Events," make the link between human-driven climate change and six selected weather crises in 2011, including the Texas drought of 2011.

It was once considered inappropriate to link an individual weather event to human-caused climate change, but as stated by Peter Stott, climate monitoring and attribution team leader at the UK Met Office, that is changing.

"We have shown that climate change has indeed altered the odds of some of the [extreme weather] events that have occurred," he told reporters. "What we are saying here is we can actually quantify those changing odds. [S]cientific thinking has moved on and now it is widely accepted that attribution statements about individual weather or climate events are possible," the report added.

The NASA Earth Observatory acknowledges that there are a complex set of atmospheric conditions that produce extreme weather like drought, However, they went on to say “weather occurs within the broader context of climate, and there’s widespread agreement among scientists that the climate is changing due to human activity.”

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