Fires are raging at a record rate in Brazil's Amazon rainforest, and scientists warn that it could strike a devastating blow to the fight against climate change. Find the top 100 most popular items in Amazon Books Best Sellers. Discover the best Climate Changes in Best Sellers. Arctic climate change, in turn, amplifies global climate change in multiple ways. " The Amazon is the most significant climate stabiliser we have," Poirier said. [SÃO PAULO] The effects of a record number of fires burning in the Amazon since January may go far beyond Brazil's and its neighbours' borders, with wider impacts on the global climate, scientists warn. The super size of Arctic climate change has a ready explanation. The carbon dioxide factor There are concerns that the Amazon region could become a net source rather than a sink (storage) of carbon dioxide (CO 2), a gas emitted mainly from burning fossil fuels, coal, oil and natural gas - and the major driver for global climate change. Climate conditions determine Amazon fire risk Researchers for the first time mapped the extent and frequency of understory fires across a study area (green) spanning 1.2 million square miles (3 million square kilometers) in the southern Amazon forest. The Amazon rainforest, besides being home to millions of species of wildlife, acts as a huge carbon sink, absorbing and storing carbon dioxide (CO 2) and helping to cool global temperatures. A new satellite-based map of a section of the Amazon Basin reveals that at least some of the massive fires burning there this past summer were concentrated in water-stressed areas of the rainforest. The Amazon is one of the best defenses against climate change: It accounts for a quarter of the carbon dioxide absorbed by the world’s forests. Fires were widespread across the forest frontier during the study period from 1999-2010.

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