23 November 2015, Reuters, Weather disasters occur almost daily, becoming more frequent -UN. Weather-related disasters such as floods and heatwaves have occurred almost daily in the past decade, almost twice as often as two decades ago, with Asia being the hardest hit region, a U.N. report said on Monday. While the report authors could not pin the increase wholly on climate change, they did say that the upward trend was likely to continue as extreme weather events increased. Since 1995, weather disasters have killed 606,000 people, left 4.1 billion injured, homeless or in need of aid, and accounted for 90 percent of all disasters, it said. A recent peak year was 2002, when drought in India hit 200 million and a sandstorm inChina affected 100 million. But the standout mega-disaster was Cyclone Nargis, which killed 138,000 in Myanmar in 2008. While geophysical causes such as earthquakes, volcanoes and tsunamis often grab the headlines, they only make up one in 10 of the disasters trawled from a database defined by the impact. The report, called “The Human Cost of Weather Related Disasters”, found there were an average of 335 weather-related disasters annually between 2005 and August this year, up 14 percent from 1995-2004 and almost twice as many as in the years from 1985 to 1994. “While scientists cannot calculate what percentage of this rise is due to climate change, predictions of more extreme weather in future almost certainly mean that we will witness a continued upward trend in weather-related disasters in the decades ahead,” the report said. Read More here
13 November 2015, Climate News Network, Global warming drains the water of life. Melting snowpack in Turkey’s Lesser Caucasus mountains. New research warns that rising temperatures are reducing the mountain snow on which billions of people in lowland areas depend for their water supply. Up to two billion people who depend on winter snow to deliver their summer water could see shortages by 2060 as upland and mountain snowpacks continue to dwindle. An estimated 300 million people could find, 45 years on, that they simply won’t have enough water for all their needs, according to new research. Climate change driven by rising atmospheric levels of carbon dioxide – in turn, fed by human combustion of fossil fuels – may already be affecting global precipitation. Researchers have consistently found that much of the world’s drylands will increase as global average temperatures rise. But warmer temperatures increasingly also mean the water that once fell as snow, to be preserved until the summer, now falls as winter rain, and runs off directly. The snow that does fall is settling at ever higher altitudes and melting ever earlier. Reliable flow This is bad news for agricultural communities that depend on a reliable flow of meltwater every summer. California is already in the grip of a sustained drought, made worse by lower falls of snow. Great tracts of Asia depend on summer meltwater from the Himalayan massif and the Tibetan plateau. Justin Mankin, an environmental scientist at Columbia University’s Earth Institute in the US, and colleagues report in Environmental Research Letters journal that they studied 421 drainage basins across the northern hemisphere. Read More here