Bird flu is showing signs of returning, and a mutant strain of the deadly H5N1 virus could be spreading in Asia, the United Nations has warned.
The UN Food and Agriculture Organisation (FAO) issued a warning on Monday that a mutant strain of bird flu could be spreading to previous virus-free countries by wild bird migrations, CBS News reports.
The FAO says the new strain can apparently dodge existing avian Read more…

The last decade has produced record-breaking heat waves in many parts of the world. At the same time, it was globally the warmest since sufficient measurements started in the 19th century. Here we show that, worldwide, the number of local record-breaking monthly temperature extremes is now on average five times larger than expected in a climate with no long-term warming. This implies that on average there is an 80 % chance that a new monthly heat record is due to climatic change. Large regional differences exist in the number of observed records. Summertime records, which are associated with prolonged heat waves, increased by more than a factor of ten in some continental regions including parts of Europe, Africa, southern Asia and Amazonia. Overall, these high record numbers are quantitatively consistent with those expected for the observed climatic warming trend with 






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