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Chicago goes to war with Asian carp
Posted by BBC: Pallab Ghosh on February 18th, 2014
BBC: The US city of Chicago is considering drastic measures to prevent giant fish infesting North America's Great Lakes.
Authorities are thinking of blocking the city's canal system to stop Asian carp entering Lake Michigan.
Such a move could cost up to $18bn (£11bn) and cause huge economic disruption to the city.
Cheaper options are also being examined, including making burgers out of the fish and eating them to extinction.
This species of carp, as the name suggests, is native to the Far...
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Jet stream ‘may be changing’
Posted by BBC: Pallab Ghosh on February 15th, 2014
BBC: New research suggests that the main system that helps determine the weather over Northern Europe and North America may be changing. The study shows that the so-called jet stream has increasingly taken a longer, meandering path. This has resulted in weather remaining the same for more prolonged periods. The work was presented at the annual meeting of the American Association for the Advancement of Science (AAAS) in Chicago. The observation could be as a result of the recent warming of the Arctic....
Prof Sir John Beddington warns of floods, droughts and storms
Posted by BBC: Pallab Ghosh on March 25th, 2013
BBC: The government's chief scientist has said that there is already enough CO2 in the atmosphere for there to be more floods and droughts over the next 25 years.
Prof Sir John Beddington said there was a "need for urgency" in tackling climate change.
He said that the later governments left it, the harder it would be to combat.
Prof Beddington made his comments in the final week of his tenure as the government's chief scientific adviser.
"The [current] variation we are seeing in temperature...