Jet stream may cause prolonged weather

The main system that helps determine the weather over Northern Europe and North America may be changing, research suggests.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.

All though the uk has been drench with rain, the US have been
nseasonably hot

                                                                                                                                                               The work was presented at the annual meeting of the American Association for the Advancements of Science (AAAS) in Chicago.The observation could be as a result of the recent warming of the Arctic. Temperatures there have been rising two to three times faster than the rest of the globe.

Aircraft flying from North America to Europe typically take advantage of the northern hemisphere polar jet to speed their journeys.The jet stream's path is far from uniform and its location can vary.In summer it usually sits to the north of the UK, making British weather a slightly cooler version of what continental Europe is experiencing.

DDT linked to Alzheimer's disease

long-term exposure to the pesticide (DDT) can increase the likelihood of developing Alzheimer's disease, research by U.S scientists suggested.

DDT was a massively successful pesticide, initially used to control malaria at the end of World War Two and then it was used to protect crops in commercial agriculture
Alzheimer's Research UK said more evidence was needed to prove DDT had a role in dementia.

Some countries still use the pesticide to control malaria.However the pesticide (DDT) was banned in the US in 1972 and in many other countries. But the World Health Organization still recommends using DDT to keep malaria down.

Control of the lion fish

A recent Oregon State University study shows that controlling the invasive lionfish in the western Atlantic Ocean is likely to allow for recovery of native fish. The lionfish is estimated to have wiped out 95% of native fish in some Atlantic locations. This Atlantic invasion is believed to have begun in the 1980s and now covers an area larger than the United States.

With venomous spines and aggressive behavior, the lionfish has no natural predators in the Atlantic Ocean and will eat almost anything smaller than they are including fish, shrimp, crabs and octopus. Lion fish can withstand starvation for protracted periods; many of their prey species will disappear before they do.