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Sun, 29 Mar 2020
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Wolf

Prey not hard-wired to fear predators

Are Asian elk hard-wired to fear the Siberian tigers who stalk them" When wolves disappear from the forest, are moose still afraid of them?

No, according to a study by Wildlife Conservation Society scientist Dr. Joel Berger, who says that several large prey species, including moose, caribou and elk, only fear predators they regularly encounter. If you take away wolves, you take away fear. That is a critical piece of knowledge as biologists and public agencies increase efforts to re-introduce large carnivores to places where they have been exterminated. Berger's study is published in the latest issue of the journal Conservation Biology.

Cloud Lightning

90 Homes Evacuated Near Colorado Wildfire

White and yellow smoke billowed into the western Colorado sky Tuesday as firefighters battled three wildfires likely sparked by lightning that have burned at least 2,000 acres and forced evacuations of 90 homes.

Telescope

Will Earth Need A Reboot After The Sky Falls?

Earth has been hit and is constantly at risk of attack by interlopers from space. These are called "near earth objects" (NEOs). Major players are asteroids. Most burn harmlessly during their trip through the atmosphere. However, just as in the intensely mediocre films, Armageddon and Deep Impact, there is more than a zero chance that a large one will threaten earth in the near future.

Cloud Lightning

Worst summer drought in 30 years leaves one mln people thirsty in NE China

The worst summer drought to hit northeast China's Liaoning Province in 30 years has left more than one million people short of drinking water, the provincial government said.

Nearly all the 14 cities in Liaoning Province have been affected by the drought, though the situation is more serious in the northwestern and central-southern parts of the province where 88 small and medium-sized reservoirs have dried up, the provincial flood prevention and drought control headquarters told Xinhua on Tuesday.

Attention

Tensions rise as U.S. drought worsens, threatens to spread

North and South Carolina are fighting over a river. In Tennessee, springs are drying up, jeopardizing production of Jack Daniels whiskey. The mayor of Los Angeles is asking residents to take shorter showers. And in Georgia, the governor is praying for rain.

More than a third of the United States is in the grip of a menacing drought that threatens to spread before the summer ends.

Red Flag

Strong earthquake hits off Papua New Guinea

A strong 6.4-magnitude earthquake struck off Papua New Guinea on Monday but there were no immediate reports of casualties or damage, a spokesman for Geoscience Australia said.

Red Flag

Moderate earthquake jolts central Iran

A 5.9-magnitude earthquake shook Iran's central areas on Monday, and there was no immediate reports of casualties or damage, state media reported.

The epicenter of the tremor, which occurred at 17:59 local time (1429 GMT), was 19 km from Qom, about 150 km south of Tehran, the official IRNA news agency reported.

Bulb

Climate models consistent with ocean warming observations

Climate models are reliable tools that help researchers better understand the observed record of ocean warming and variability.

That's the finding of a group of Livermore scientists, who in collaboration with colleagues at Scripps Institution of Oceanography, had earlier established that climate models can replicate the ocean warming observed during the latter half of the 20th century, and that most of this recent warming is caused by human activities.

The observational record also shows substantial variability in ocean heat content on interannual-to-decadal time scales. The new research by Livermore scientists demonstrates that climate models represent this variability much more realistically than previously believed.

Using 13 numerical climate models, the researchers found that the apparent discrepancies between modeled and observed variability can be explained by accounting for changes in observational coverage and instrumentation and by including the effects of volcanic eruptions.

The research, which will appear in the June 18 early online edition of the journal Proceedings of the National Academy of Sciences, casts doubt on recent findings that the top 700-meters of the global ocean cooled markedly from 2003-2005.

"Our analysis shows that the 2003-2005 'cooling' is largely an artifact of a systematic change in the observing system," said Krishna AchutaRao, previously of Livermore's Program for Climate Model Diagnosis and Intercomparison (PCMDI), now at the Indian Institute of Technology Delhi and the lead author of the paper. "The previous research was based on looking at the combined ocean temperature observations from several different instrument types, which collectively appear to have a cooling effect. But if you look at the observational instruments individually, there is no cooling."

Cloud Lightning

Glacial Source of Ganges Is Receding

But the prayer rituals carried out at the water's edge may not last forever -- or even another generation, according to scientists and meteorologists. The Himalayan source of Hinduism's holiest river, they say, is drying up.

In this 3,000-year-old city known as the Jerusalem of India for its intense religious devotion, climate change could throw into turmoil something many devout Hindus thought was immutable: their most intimate religious traditions. The Gangotri glacier, which provides up to 70 percent of the water of the Ganges during the dry summer months, is shrinking at a rate of 40 yards a year, nearly twice as fast as two decades ago, scientists say.

X

Qatar: High temperatures hit fish supplies

A number of retailers in Qatar have been forced to shut up shop as high temperatures have hit fish catchments.

The Peninsula reports on June 18th that the combined effects of warm seas and cyclonic winds have hit the available supply of fish, including King Fish and Hamur.