Sentences with phrase «century warming from»

... our main conclusion that 20th century warming from the instrumental record spanned much of the Holocene range.

Natural variation similar in scope and speed to late century warming from 1977.

Evidence of unusual late 20th century warming from an Australasian temperature ensemble reconstruction spanning the last millennium.

NASA Geophysical Fluid Dynamics Laboratory / Delworth et al., 2000 «Internal climate variability is primarily responsible for the early 20th century warming from 1904 to 1944 and the subsequent cooling from 1944 to 1976.»

The only way one would not see a late 20th century warming from these data sets is if you had the graph upside down.

Not exact matches

Marc Scott, a portfolio manager at American Century Investments, says that the warm weather in 2012 caused demand to fall by 12 % from the same period the year before.

During the first third of the year, from January through April, the average temperature for the contiguous United States was 4 degrees Fahrenheit above the 20th - century average, making this period the second warmest on record, according to the National Oceanic and Atmospheric Administration.

Moderator's Remarks from Al Appleton, former Commissioner of the NYC Department of Environmental Protection and Senior Fellow at the Cooper Union: When we talk about addressing global warming, we're talking about disentangling 21st century society from fossil fuel.

In the early 19th century, American entrepreneur Frederic Tudor began shipping ice cut from New England ponds to warm climates like the West Indies.

The long - term warming over the 21st century, however, is strongly influenced by the future rate of emissions, and the projections cover a wide variety of scenarios, ranging from very rapid to more modest economic growth and from more to less dependence on fossil fuels.

Warmer temperatures and increased fire frequency over the next century could eliminate the Joshua tree from 90 percent of its current range within Joshua Tree National Park, according to another USGS study.

For more than half a century, the La Selva Biological Station in Costa Rica has provided researchers with the data needed to study everything from local amphibian and reptile populations to global warming.

Heavier rainfall at the study sites from the year 0 to 400, and again during Europe's Medieval Warm Period, just before the Little Ice Age from about the year 800 to 1300, was probably caused by a centuries - long strengthening of El Niño.

But these severe winters may be a temporary phase within longer term warming: By the end of the century, the researchers report, the Arctic Oscillation could overpower the cooling effect from WACE — and winter temperatures over Eurasia will gradually increase.

The study used simulations from the Community Earth System Model (CESM) run at the National Center for Atmospheric Research (NCAR) and examined warming scenarios ranging from 1.5 degrees Celsius all the way to 4 degrees Celsius (7.2 degrees Fahrenheit) by the end of the century.

New ice cores taken from the summit of Mt. Hunter in Denali National Park show summers there are least 1.2 - 2 degrees Celsius (2.2 - 3.6 degrees Fahrenheit) warmer than summers were during the 18th, 19th, and early 20th centuries.

Warming in the 21st century reduced Colorado River flows by at least 0.5 million acre - feet, about the amount of water used by 2 million people for one year, according to new research from the University of Arizona and Colorado State University.

A 13th century Norwegian royal treatise called The King's Mirror lauds Greenland's suitability for farming: The sun has «sufficient strength, where the ground is free from ice, to warm the soil so that the earth yields good and fragrant grass.»

In one study published in Geophysical Research Letters in 2007, scientists at the Max Planck Institute for Meteorology in Hamburg, Germany, estimated the mass redistribution resulting from ocean warming would shorten the day by 120 microseconds, or nearly one tenth of a millisecond, over the next two centuries.

This is unacceptable at a time when leading scientists from all over the world are warning that greenhouse gases must be cut by at least 60 percent over the next half a century to avert the worst consequences of global warming.

Much of alternative medicine is a nut farm, featuring warmed - over nineteenth - century quackery that ranges from worthless to lethal.

And achieving any stabilization target — whether 2 degrees C of warming or 450 ppm or 1,000 gigatons of carbon added to the atmosphere by human activity — will require at least an 80 percent cut in emissions from peak levels by the end of this century and, ultimately, zero emissions over the long term.

The material on Amazon forest dieback was in the IPCC assessment as were the numbers on recent sea level (thought the IPCC did not use the information on recent contributions from land ice in their estimate for 21st century warming.)

By the middle of the next century the resulting warming could boost global mean temperatures from three to nine degrees Fahrenheit.

Early in the next century, forests planted to protect the planet from global warming could be contributing to it.

If these glaciers retreat at a similar rate to what they did in the past decade, 30 of them would disconnect from warm ocean waters by the end of the century with that kind of travel distance, it says.

The strongest evidence for global warming comes from physics and chemistry, not from records of past temperatures, which is why scientists were predicting warming long before the rise in temperature over the 20th century was obvious.

Global - change scientists might move a coral from a reef to an aquarium whose water is held 1 °C higher to test the effects of the ocean warming predicted for the end of the century.

The Gulf Stream, an ocean current that brings warm water from the equator toward the North Atlantic, has been credited with this observed variation in temperature for over a century.

And scientists have worried that a gush of meltwater from a warming Arctic might dramatically slow the AMOC for centuries or even kill it off.

From AD 1300 to 1600, wildfires ignited during late summer, with about 5 - 10 ignitions per quarter century, generally occurring during warm, dry summers.

Professor Drijfhout said: «The planet earth recovers from the AMOC collapse in about 40 years when global warming continues at present - day rates, but near the eastern boundary of the North Atlantic (including the British Isles) it takes more than a century before temperature is back to normal.»

The world's oceans have already risen by an average of 8 inches over the last century from a combination of water added by ice melt and the expansion of ocean waters as they warm.

Adding pressure on Trump, scientists from the United States and other Arctic nations issued a report ahead of the meeting warning that the warming could lead to trillions of dollars worth of damage to buildings, roads and other infrastructure this century..

Heatwaves from Europe to China are likely to be more intense and result in maximum temperatures that are 3 °C to 5 °C warmer than previously estimated by the middle of the century — all because of the way plants on the ground respond to carbon dioxide in the atmosphere.

The warming of the WAIS is most worrisome (at least for this century) because it's going to disintegrate long before the East Antarctic Ice Sheet does «'' since WAIS appears to be melting from underneath (i.e. the water is warming, too), and since, as I wrote in the «high water» part of my book, the WAIS is inherently less stable:

The evidence points to a warming of about 0.6 - 0.8 °C over the past century and a neglible effect on this from the UHI.

It can not be seen directly because of oceanic damping, but it does call for about ~ 0.3 C of warming (instead of ~ 0.1 C from pure TSI) in the early 20th century based on Lockwood's solar activity reconstructions.

Countries have agreed on a goal of limiting warming to under 2 °C (4 °F) from pre-industrial times by the end of the century.

2) A better ability to constrain climate sensitivity from the past century's data 3) It will presumably be anticorrelated with year to year variations in global surface temperature that we see, especially from El Ninos and La Ninas, which will be nice whenever we have a cool year and the deniers cry out «global warming stopped!».

Abstract: Analyses of underground temperature measurements from 358 boreholes in eastern North America, central Europe, southern Africa, and Australia indicate that, in the 20th century, the average surface temperature of Earth has increased by about 0.5 degrees C and that the 20th century has been the warmest of the past five centuries.

In his Figure 5 under a section entitled «A New Northern Hemisphere Summer Temperature Record» he shows that the mid to late 20th century temperature as determined from tree ring analysis is far warmer than any period in the past that his analysis includes (this only goes back to 1400 AD).

For the global average, warming in the last century has occurred in two phases, from the 1910s to the 1940s (0.35 °C), and more strongly from the 1970s to the present (0.55 °C).

Governments agreed last year in the landmark Paris accord to limit the amount of warming this century to «well below» 2 °C (3.6 °F) from preindustrial times to curb the impacts of that warming.

A constant - rate (i.e. straight - line) extrapolation of global warming from the 20th to the 21st century, as in the brief's Figure 2, is a favorite technique of one of the authors, Pat Michaels.

There is separate evidence from ice cores that Antarctica has been warming for most of the 20th century, but this is complicated by the strong influence of El Niño events in West Antarctica.

Sea level rise this century was expected to be primarily from warming oceans, but glacier and ice sheet melt may pass warming mid-century.

The basic fact that rising concentrations of greenhouse gases result in global warming has been understood since it was predicted from physical laws over a century ago; specification of the magnitude and geographical distribution of the warming are elucidated by the twentieth century observations and calculations.

For a quarter century global - warming theorists have predicted that climate creep was going to occur and that we needed to prevent greenhouse gases from warming things up, thereby raising the sea level, destroying habitats, intensifying storms, and forcing agricultural rearrangements.

The small increase in CO2 from about 0.03 % to 0.04 % over the past century has likely produced some small warming, probably about 0.4 °C.