Sentences with phrase «dramatic warming»

Computer models reveal that exoplanets with very saline oceans could have circulation patterns opposite to that on Earth, resulting in dramatic warming of their polar regions, possibly extending their range of habitability.

The paper also found that warming would be faster in the Northern Hemisphere compared with the Southern Hemisphere, and that if geoengineering were used to suppress an even more dramatic warming scenario — say, 2 percent annual increases in CO2 concentrations — the rapid climate changes would be even faster after an abrupt suspension of the experiment.

Very dramatic warming effects occur on a vast time scale, over decades and centuries, so we are unlikely to witness them in our lifetimes.

So you mean to tell me that so dramatic a warming had no effect on Viking migrations.

In reporting that parts of Alaska and northern Eurasia had warmed by nearly 11 degrees in winter months the past 30 years, Dr. Serreze observed, «We have climate evidence from the past four centuries gleaned from ice cores, lake cores and tree rings that don't show nearly as dramatic warming, putting the modern record into context.»

But it also demonstrates another reason for international concern over the rapid and dramatic warming of the Arctic.

, though, even more dramatic warming wouldn't be a problem, Peiser says.

Prof Berndt speculates that either the methane leaks are the result of even longer term changes in temperature than the recent dramatic warming, or that there is some seasonal variation going on where the methane hydrates melt and reform.

It is clear that continuing to rely on fossil fuels will have catastrophic results, because of the dramatic warming effect of carbon dioxide.

How did the dramatic warming escape recognition for so long?

Fishers noticed a periodic drop in their typically sizable anchovy catch that seemed to coincide with a dramatic warming of the ocean waters.

Although these two carbon sources alone wouldn't have accounted for the dramatic warming event that followed, once a bunch of greenhouse gas is released into the atmosphere, as we modern earthlings have been observing in real time lately, it destabilizes and releases other greenhouse gases like methane locked up in permafrost or under the seafloor.

«This is the first time such a dramatic warm seclusion has been documented in a landfalling U.S. hurricane,» Henson wrote.

I tried out a dramatic warm bronze [Toast of New York] and a rich purple - y marsala [Plum Velour.]

Ongoing assessments of penguins and other life along the peninsula have not turned up any clear link between population changes and tourism so far, and the main source of change appears — so far — to be the dramatic warming of the regional climate, Ron Naveen told me in a recent e-mail.

2) The dramatic warming over the period 1970 to 2000 and the fact that the starting level was not at the bottom of a dip and the ending level has been maintained until now.

And this is happening amid a dramatic warming of the Arctic region and of Alaska in particular, which «has warmed more than twice as fast as the rest of the country,» notes the Climate Central report — 3 degrees over the past 60 years.

Both dramatic warming events were preceded by decreasing Greenland dust deposition, indicating higher tropical temperatures and significantly more rain falling on the deserts of Asia at the time, said White.

These changes precipitated a dramatic warming of the northern hemisphere in just a few decades, and the retreat of the glaciers for an extended period before the ice returned to claim much of the landmass again.

It is probable that humans contributed to the dramatic warming of the last quarter of the 20th century.

There is also evidence of a dramatic warm period on the northern perimeter of Canada, where as the ice retreated during a recent summer, an array of hundreds of large tree stumps was revealed.

Dramatic warming and upheaval of the carbon system at the end of the Paleocene Epoch have been linked to massive dissociation of sedimentary methane hydrate.

Records show there has been a dramatic warming of over 2 degrees Celsius during the past 70 years in Mongolia.

For countries like Canada and Russia, though, even more dramatic warming wouldn't be a problem, Peiser says.

If Dr. Hansen is correct and humans are responsible for the recent warming, then what caused earlier periods of dramatic warming — and cooling?

The data does suggest a plateau, he admitted, and without a major El Nino event — the sudden, dramatic warming of the southern Pacific which takes place unpredictably and always has a huge effect on global weather — «it could go on for a while».

«In our models, the Indian Ocean shows very clear and dramatic warming into the future, which means more and more drought for southern Africa,» said Dr. James W. Hurrell, author of a recent study by the US - based National Center for Atmospheric Research.

Dramatic warming may exact a terrible price in terms of human welfare, especially in poorer countries.