Renewable Energy May Overshoot Target

Australia is likely to overshoot its ”20 per cent by 2020” renewable energy target by about 6 per cent, according to Origin Energy, potentially adding to rising electricity costs.

Origin, Australia’s largest electricity retailer, says the recent trend of falling overall electricity demand and increasing penetration of rooftop solar and solar hot water systems means Australia is likely to require only 250 terawatt hours (TWh) of electricity in 2020, rather than the fixed volume of 300 TWh anticipated in the renewable energy target legislation. [Read more...]

How The Sandstorm Affects Your Life

A breakdown of how the recent sandstorm affects you: From you car engine’s performance to a range of health and other practical issues

In the air

All flights operating from Dubai International Airport and Abu Dhabi were unaffected by yesterday’s sandy conditions. An Etihad spokesman said all its flights were operating normally from Abu Dhabi. In Dubai, a spokesman for Emirates told Gulf News yesterday that its flights were operating according to schedule and were unaffected by the climatic conditions. And a spokesman for Virgin Atlantic said its flights were operating normally. [Read more...]

Is The End Near? Opinions Vary On Mayan Calendar, Doomsday

Have a good New Year’s Eve? Party a bit? Drink too much? First week of 2012 been going pretty well?

Well, enjoy yourself while you can because, if some anonymous and long-deceased Mayan calendar-maker is to be believed, it’s the last new year you’ll ever get.

That’s right: The official countdown to the biggest blowout Ma Earth has ever seen has begun.

Unless, of course, it hasn’t.

Wishy-washy? Sure. And for that, blame a calendar created by the Mayans a few thousand years ago that, some believe, portends all sorts of apocalyptic ugliness happening on or around Dec. 21, 2012. [Read more...]

Neither Climate Nor Humans Alone Caused Ice Age Mass Extinctions

An inter-disciplinary team from more than 40 universities around the world have put an end to the controversial single-cause theories of Ice Age mass extinctions.

Scientists have for years debated the reasons behind the Ice Age mass extinctions, which caused the loss of a third of the large mammals in Eurasia and two thirds of the large mammals in North America.

They have been arguing on whether climate change or humans are responsible for the extinctions of the large-bodied Ice Age mammals (commonly called megafauna) such as the woolly rhinoceros and woolly mammoth.

Now the study, led by Professor Eske Willerslev and his group from the Centre for GeoGenetics, University of Copenhagen, has revealed dramatically different responses of Ice Age species to climate change and human impact. [Read more...]

Global Warming: Why Americans Are In Denial

Tucked between treatises on algae and prehistoric turquoise beads, the study on page 460 of a long-ago issue of the U.S. journal Science drew little attention.

“I don’t think there were any newspaper articles about it or anything like that,” the author recalls.

But the headline on the 1975 report was bold: “Are We on the Brink of a Pronounced Global Warming?” And this article that coined the term may have marked the last time a mention of “global warming” didn’t set off an instant outcry of angry denial. [Read more...]

Italy Scientists On Trial Over L’Aquila Earthquake

The trial of six Italian scientists and a former government official for manslaughter over the 2009 earthquake in L’Aquila has opened in the city.
The 6.3 magnitude quake devastated the city and killed 309 people.
Prosecutors allege the defendants gave a falsely reassuring statement before the quake after studying hundreds of tremors that had shaken the city.
The defence argues that there is no way to predict major earthquakes even in a seismically active area. [Read more...]

By Storing More Heat, Oceans Create ‘Hiatus Periods’ in Rise of Global Warming — Study

The “missing heat” needed to balance the Earth’s energy budget may be lurking in the deep oceans, a new study finds.

That deep ocean heat storage could help explain periods when global warming has slowed, even though satellite data show no change in the amount of energy trapped in the Earth’s atmosphere.

That “missing heat” is hiding out in ocean waters at depths of 1,000 feet or more, according to researchers from the United States and Australia. Their findings, based on computer climate simulations, were published yesterday in the journal Nature Climate Change.

The study also predicts that the continued warming of the climate will be punctuated by brief periods when the rate of warming slows, stops or even reverses, slightly. [Read more...]