Earth Changes
The Murray-Darling basin in south-eastern Australia yields 40 per cent of the country's agricultural produce. But the two rivers that feed the region are so pitifully low that there will soon be only enough water for drinking supplies. Australia is in the grip of its worst drought on record, the victim of changing weather patterns attributed to global warming and a government that is only just starting to wake up to the severity of the position.
The stunning white sand beaches of Jervis Bay have been swamped with a bloom of red algae washed ashore by sea breezes.
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©The Daily Telegraph |
Crimson coast ... the usually white sands of the beach at Huskisson at Jervis Bay is turned red by an algae bloom. |
The finding, detailed in the April 20 issue of the journal Science, could have implications for the development of life as the planet's climate warms.
The research reveals that extreme temperatures could inactivate a gene on the male sex chromosomes of dragon lizards and thus turn male embryos into females. The sex-reversed lizards look female and have female organs but genetically they are male, said lead author Alexander Quinn of the University of Canberra in Australia.
"I couldn't believe it. It was like a dog chasing cars,'' Peterson said. "It looked like a big, healthy male wolf. No mange.''
Responding to the call last Friday, Peterson saw the animal hide in the ditch as a pickup approached and then come bounding out to chase it.
The wolf did the same when Peterson drove to that spot, where he stopped his vehicle.
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©AP Photo/Fernando Vergara |
The Nevado del Huila volcano is seen in this aerial view, at the southwestern state of Huila, Colombia |
NEIVA, Colombia - Thousands of people were evacuated after a long-dormant volcano erupted late Tuesday and again early Wednesday, provoking avalanches and floods that swept away houses and bridges.
Taking advantage of suitable weather conditions, the Tibet meteorological station carried out an artificial snowfall operation in Nagqu County in northern Tibet on April 10 at an altitude of about 4.500 meters.