Frequent tornadoes a symptom of jet stream change

Frequent tornadoes a symptom of jet stream change

The unusually large number of severe tornadoes this year may be a sign of large-scale changes in the jet stream. When the events happen frequently such as the destruction of Joplin, Mo., the outbreak of multiple tornadoes in Alabama, and the northeast outbreak in…

Volcano expert fears we’ll see a super eruption in this century

Volcano expert fears we’ll see a super eruption in this century

Examining geological, historical and archeological records, the expert took the audience on a journey back to three volcanic eruptions that have shaken the world – the 1815 Tambora volcano in Indonesia that killed 100,000 people, the 1783 eruption of Kaki in Iceland

Kyoto deal loses four big nations

Kyoto deal loses four big nations

Russia, Japan and Canada told the G8 they would not join a second round of carbon cuts under the Kyoto Protocol at United Nations talks this year and the US reiterated it would remain outside the treaty, European diplomats have said.The future of the Kyoto Protocol

New Greenland ice loss study emerges

New Greenland ice loss study emerges

 In the last decade, two of the three largest glaciers in Greenland have lost enough ice that, if melted, could have filled Lake Erie.This startling picture of Greenland’s ice loss comes from a new study that refines measurements of such ice loss and is

Deforestation of the Brazilian Amazon rainforest has increased almost sixfold

Deforestation of the Brazilian Amazon rainforest has increased almost sixfold

Satellite images show deforestation increased from 103 sq km in March and April 2010 to 593 sq km (229 sq miles) in the same period of 2011, Brazil’s space research institute says. Much of the destruction has been in Mato Grosso state, the centre of soya farming in