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Tag: "climate" at biology news

Satellites shed light on global warming

As climate change continues to make headlines across the worl...a better idea of the likely scale of the impact of climate change. In addition, the melting of sea-ice will increase the amount of solar radiation that will be...

Volcanic eruptions, ancient global warming linked

...th’s history are of interest as analogs to today’s climate change, Duncan said. The international science team was able to link the PETM with the breakup of Greenland from northern Europe through analyzing the ash layers deposited toward the end of the peak of the volcanic eruptions. Using chemical finger...

Human preference for other species could determine whether they survive

...ct their oil. Some species now struggle to survive climate change, changing food patterns and encounters with humans or human activity, such as oil drilling at sea. The species are fairly similar, with some larger and some smaller, Stokes said. But the ones that appear to be most popular are the ones tha...

Something new under the sun

...row better if grown in a greenhouse in the correct climate is nothing new. Dutch researcher Rachel van Ootegh...ouse that yields more. In the new greenhouse, good climate control with sustainable energy resulted not only in an increased crop yield but also a lower gas bi...

More species in the tropics because species have been there longer

...ith GIS-based methods for analyzing the effects of climate on species distributions, the researchers found no relationship between how quickly species originate within a group and whether that group is tropical or temperate. However, they did find a strong relationship between when each region was coloni...

Record ozone loss during 2006 over South Pole

...s scheduled to be launched in 2006 and will assist climate researchers in monitoring ozone levels and other atmospheric parameters. MetOp ?Europe's first polar-orbiting satellite and a mission dedicated to operational meteorology ?will include a next-generation ozone-monitoring instrument called GOME-2, inte...

Evolution of Old World fruit flies on three continents mirrors climate change

Fast-warming climate appears to be triggering genetic changes in a spec... a clear signal on three different continents that climate change is occurring, and that genetic change is going along with it," said Raymond Huey, a Universit...

NASA satellite data helps assess the health of Florida's coral reef

...ching and ways to prevent it so that the impact of climate and man on these vital ecosystems can be minimized. ...

Global changes alter the timing of plant growth, scientists say

...per Ridge Biological Preserve report evidence that climate change may alter this delicate balance. "In the ...nalysis and Synthesis in Santa Barbara, Calif. "If climate change alters the timing of plant activity, then it could have a domino effect, impacting the feedin...

Researchers link ocean organisms with increased cloud cover and potential climate change

...ivity could add a critical new component to global climate models. Many environmental scientists believe tha...s. "One of the largest uncertainties right now in climate models is the ability to predict how clouds would respond to changing particle levels ?whether they ...

A buffet for early human relatives

...ore varied about 3 million years ago when Africa's climate started getting drier and more seasonal. That was shortly before the first appearance of stone tools and of Paranthropus and Homo, the genus to which modern humans (Homo sapiens) belong. The researchers noted that Paranthropus often has been port...

Reef warns of sea level rise

...rew we know that atmospheric CO2 levels were high, climate had warmed, that the northern icesheets had melted...scientists expect to be the case by 2050, then the climate shifts and warming effects and will become even more dramatic and surpass those of the Last Intergla...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

... about the significant impact of archaea on global climate and nutrition. In recent years, scientists have discovered that methanogenic archaea play an important role in the build-up of methane gas in the atmosphere. According to the Environmental Protection Agency, methane is about 20 times more efficient a...

Siberian lakes burp 'time-bomb' greenhouse gas

...ly estimated" and acting as a positive feedback to climate warming, said Katey Walter, in a paper published t...ethane can be released to the atmosphere enhancing climate warming," Walter said. "This newly recognized source of methane is so far not included in climate mo...

End of deforestation in view? Experts advance new way to size up global forest resources

...iodiversity," adds Dr. Sedjo. Implications for climate change In addition to the measurement of forest...of a given area, knowledge critical for mitigating climate change. Says Dr. Waggoner: "A rapid forest transition at a global scale would mean that atmosp...

Climate change creates dramatic decline in red-winged black bird population

...ear data about the red-winged black bird alongside climate records, he found a direct correlation with the No...Oscillation. The NAO is a dominant cause of winter climate variability in the North Atlantic region ranging from central North America to Europe and much of No...

Shrinking ponds signal warmer, dryer Alaska

...changes in arctic ponds are associated with recent climate warming in Alaska and may have profound effects on climate and wildlife. Over the past 50 years, Alaska has experienced a warming climate with longer growing ...

Pattern of human Ebola outbreaks linked to wildlife and climate

... fever in human and wildlife populations, and that climate may influence the spread of the disease. The deca... the findings, the spread of Ebola also depends on climate factors. Illness and deaths among animals were most prevalent during periods of prolonged drought-l...

Climate experts search for answers in the oceans

...is carbon dioxide might be impaired as a result of climate change. To determine their response to global warm... their efforts in an attempt to understand how the climate is reacting to changes. "Clues to climatic changes may already be written on the oceans?surface. Be...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...ifferent "energy crops" suited to their particular climate and soil conditions, including such plants as switchgrass and willow. In addition, a large quantity of biofuels might be produced from agricultural and forestry waste. ...

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