The scientific community is stunned by research which backs an Australian Aboriginal legend on how coastal palm trees got to Central Australia. Tasmanian ecologist Professor David Bowman did DNA tests on palm seeds from the outback, and his conclusion is startling :: Read the full article »»»»
Global greenhouse gases in the atmosphere have reached an ominous milestone that is unprecedented in human history. The world’s longest measure of carbon dioxide in the atmosphere has reached 400 parts per million for the first time in three million years.
The daily CO2 level is measured at the Mauna Loa Observatory in Hawaii, which tracks greenhouse gases in the Northern Hemisphere. The level has been measured at Mauna Loa since 1958, with data before that taken from ice core samples.
The last time it reached this level, temperatures rose by between three and four degrees and sea levels were between five and 40 metres higher than today. Still sceptical? :: Read the full article »»»»
A re-analysis of temperature records from 1958 to 2010 revealed an increase of 2.4 degrees Celsius over the period, three times the average global rise.
The increase means west Antarctica is one of the fastest-warming regions on Earth, according to paper co-author David Bromwich of the Byrd Polar Research Centre.
“Records suggests that continued summer warming in west Antarctica could upset the surface balance of the ice sheet, so that the region could make an even bigger contribution to sea-level rise than it already does.” David Bromwich said :: Read the full article »»»»
There is new evidence that the sun’s UV rays are even more damaging than previously thought.
The sun emits two kinds of UV rays to the earth’s surface: UVA and UVB. It had been thought that those rays do not damage the deeper layers of the skin as much as they damage the top layers. New research from Kings College London has found that is the case for UVB rays, but not for UVA rays. The study has found UVA rays are more carcinogenic than previously realised – a finding scientists say underscores how important it is to limit exposure to the sun and to tanning studios. The study was led by Antony Young, Professor of experimental photobiology at King’s College. Read the full article »»»»