The research is based on studies of sediment from 36 lakes in the USA, Canada, Greenland and Svalbard, Norway. The researchers have analysed how the chemical composition of the sediment has changed over the centuries. Twenty-five of the lakes all show the same sign – that biologically active nitrogen from human sources can be traced [...]

Rise and fall of groups of fauna driven by temperature

Study examines impact of 2007 Cosco Busan oil spill in San Francisco Bay

American Geophysical Union AGU Journal Highlights – 30 December 2011

Where on Earth is it like Mars? How were the Apollo astronauts trained to be geologists on the Moon? Are volcanoes on Earth just like the ones on other planets? The exploration of our solar system begins in our own backyard. Discoveries on other planetary bodies cannot always be easily explained. Therefore, geologic sites on [...]

An international team of researchers has reviewed the evidence linking exposure to atrazine – an herbicide widely used in the U.S. and more than 60 other nations – to reproductive problems in animals. The team found consistent patterns of reproductive dysfunction in amphibians, fish, reptiles and mammals exposed to the chemical. Atrazine is the second-most [...]

However, Svante Björck, a climate researcher at Lund University in Sweden, has now shown that global warming, i.e. simultaneous warming events in the northern and southern hemispheres, have not occurred in the past 20 000 years, which is as far back as it is possible to analyse with sufficient precision to compare with modern developments. [...]

Politicians are being urged to get tough on the Big Six energy companies with 90 per cent of Brits backing a call for a public inquiry into their power and half believing the main reason for bills doubling since 2004 is energy company greed, according to a new survey released today by Friends of the [...]