How do we know that the pronounced global warming trend during the 20th and 21st century is not caused by natural cycles?
The National Academy of Science (NAS) presents a short video to explain why there is a greater than 90% chance that the global warming trend over the past 50 to 60 years is due to the burning of fossil fuels and other greenhouse gas emissions and not natural cycles.
Video courtesy of the National Research Council and YouTube.....
Scientists from NASA have determined that the drought of 1934 was the driest and most widespread drought in North America over the past 1,000 years.
September 2014 was the warmest September on record globally for land/ocean combined, according to NASA.
While climate change has been responsible for a long-term increase in global temperatures there have been unanswered questions in regards to it's impact on temperature variability.
A recap of the 2014 Arctic melt season.
Scientists from the Lawrence Livermore National Laboratory have concluded the the warming of the top 700 meters of the Southern Hemisphere oceans has been underestimated since 1970.
Changes in the layering of ocean water temperatures surrounding Antarctica are eerily similar to what took place 14,000 years ago.