Sentences with phrase «average global warming of»

There is no doubt, therefore, that the subject of adaptation in a «4 °C world» (here, we use this shorthand to refer to the world with a serious prospect of average global warming of 4 °C or more) will become an increasingly urgent concern.

It's hard to deny that there may be some risk, just as its impossible to deny one might get hit by a car tomorrow morning, but this is speculative in the extreme, and ignores a vast number of counteracting «negative» feedbacks from the biosphere, as well as the lack of average global warming of the last 18 years.

Not exact matches

The LCA examined the effects of a 1 kilogram industry - average corrugated product manufactured in 2014 on seven environmental impact indicators: global warming potential (greenhouse gas emissions), eutrophication, acidification, smog, ozone depletion, respiratory effects, fossil fuel depletion; and four inventory indicators: water use, water consumption, renewable energy demand, and non-renewable energy demand.

Most scientists and climatologists agree that weird weather is at least in part the result of global warming — a steady increase in the average temperature of the surface of the Earth thought to be caused by increased concentrations of greenhouse gasses produced by human activity.

The report found that while disposable nappies used over 2 1/2 years would have a global warming impact of 550 kg of CO2 reusable nappies produced 570 kg of CO2 on average.

During the Eocene, the concentration of carbon dioxide in the atmosphere was more than 560 parts per million, at least twice preindustrial levels, and the epoch kicked off with a global average temperature more than 8 degrees Celsius — about 14 degrees Fahrenheit — warmer than today, gradually cooling over the next 22 million years.

One aerosol, black carbon, is of increasing concern for Arctic nations worried about the pace of climate change in the far north, which is warming twice as fast as the global average.

With Arctic temperatures warming twice as fast as the global average, scientists estimate thawing permafrost could release large amounts of carbon into the atmosphere through the end of the century with significant climate impacts.

But they've been especially interested in the most recent period of abrupt global warming, the Bølling - Allerød, which occurred about 14,500 years ago when average temperatures in Greenland rose about 15 degrees Celsius in about 3,000 years.

Combining the asylum - application data with projections of future warming, the researchers found that an increase of average global temperatures of 1.8 °C — an optimistic scenario in which carbon emissions flatten globally in the next few decades and then decline — would increase applications by 28 percent by 2100, translating into 98,000 extra applications to the EU each year.

The average global temperature change for the first three months of 2016 was 1.48 °C, essentially equaling the 1.5 °C warming threshold agreed to by COP 21 negotiators in Paris last December.

Three approaches were used to evaluate the outstanding «carbon budget» (the total amount of CO2 emissions compatible with a given global average warming) for 1.5 °C: re-assessing the evidence provided by complex Earth System Models, new experiments with an intermediate - complexity model, and evaluating the implications of current ranges of uncertainty in climate system properties using a simple model.

The work by Mark Jacobson, director of Stanford University's Atmosphere / Energy program and a fellow at the university's Woods Institute, argues that cutting emissions of black carbon may be the fastest method to limit the ongoing loss of ice in the Arctic, which is warming twice as fast as the global average.

The strength and path of the North Atlantic jet stream and the Greenland blocking phenomena appear to be influenced by increasing temperatures in the Arctic which have averaged at least twice the global warming rate over the past two decades, suggesting that those marked changes may be a key factor affecting extreme weather conditions over the UK, although an Arctic connection may not occur each year.

On one hand, areas of high climatic stability are predicted to warm less than the global average.

Changes in the number of cosmic rays hitting the atmosphere due to changes in solar activity can not explain global warming, as average cosmic ray intensities have been increasing since 1985 even as the world has warmed — the opposite of what should happen if cosmic rays produce climate - cooling clouds.

«The result is not a surprise, but if you look at the global climate models that have been used to analyze what the planet looked like 20,000 years ago — the same models used to predict global warming in the future — they are doing, on average, a very good job reproducing how cold it was in Antarctica,» said first author Kurt Cuffey, a glaciologist at the University of California, Berkeley, and professor of geography and of earth and planetary sciences.

The results show that even though there has been a slowdown in the warming of the global average temperatures on the surface of Earth, the warming has continued strongly throughout the troposphere except for a very thin layer at around 14 - 15 km above the surface of Earth where it has warmed slightly less.

One period of particular interest is a warm, wet interglacial stage known as the Eemian that occurred from 124,000 to 119,000 years ago, featuring average global temperatures about 2 °C warmer than today.

Increased flow of the East Australian Current, for example, has meant waters south - east of the continent are warming at two to three times the global average.

Bowen and colleagues report that carbonate or limestone nodules in Wyoming sediment cores show the global warming episode 55.5 million to 55.3 million years ago involved the average annual release of a minimum of 0.9 petagrams (1.98 trillion pounds) of carbon to the atmosphere, and probably much more over shorter periods.

So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where rainfall happens is going to shift.

Global warming has been going on for so long that most people were not even born the last time the Earth was cooler than average in 1985 in a shift that is altering perceptions of a «normal» climate, scientists said.

One of the planet's hotspots has been the outsized warming in the Arctic, which is seeing a temperature rise double that of the global average.

Warmer than average temperatures were evident over most of the global land surface, except for parts of western Europe, northern Siberia, parts of eastern Asia and much of central Australia stretching north.

Politicians have generally adopted the aim of limiting global warming to 2 °C above 19th century averages, so a 1 °C is not something to be taken lightly.

Statistical analysis of average global temperatures between 1998 and 2013 shows that the slowdown in global warming during this period is consistent with natural variations in temperature, according to research by McGill University physics professor Shaun Lovejoy.

In the latter half of the decade, La Niña conditions persisted in the eastern and central tropical Pacific, keeping global surface temperatures about 0.1 degree C colder than average — a small effect compared with long - term global warming but a substantial one over a decade.

«We examined average and extreme temperatures because they were always projected to be the measure that is most sensitive to global warming,» said lead author from the ARC Centre of Excellence for Climate System Science, Dr Andrew King.

Average composite reflectivity over the CONUS (contiguous US) domain in all 13 years of the simulations are shown by season (May - June and July - August) and by simulation type (control and psuedo global warming).

As Pat Michaels, a climatologist and self - described global warming skeptic at the Cato Institute testified to Congress in July, certain studies of sensitivity published since 2011 find an average sensitivity of 2 degrees C.

The second simulation overlaid that same weather data with a «pseudo global warming» technique using an accepted scenario that assumes a 2 - to 3 - degree increase in average temperature, and a doubling of atmospheric carbon dioxide.

Their findings, based on output from four global climate models of varying ocean and atmospheric resolution, indicate that ocean temperature in the U.S. Northeast Shelf is projected to warm twice as fast as previously projected and almost three times faster than the global average.

«Northeast US temperatures are decades ahead of global average: Climate scientists say Northeast will warm sooner than most of US.»

In contrast, the consensus view among paleoclimatologists is that the Medieval Warming Period was a regional phenomenon, that the worldwide nature of the Little Ice Age is open to question and that the late 20th century saw the most extreme global average temperatures.

Results of a new study by researchers at the Northeast Climate Science Center (NECSC) at the University of Massachusetts Amherst suggest that temperatures across the northeastern United States will increase much faster than the global average, so that the 2 - degrees Celsius warming target adopted in the recent Paris Agreement on climate change will be reached about 20 years earlier for this part of the U.S. compared to the world as a whole.

Without any action, the world is on track to achieve at least 4 degrees C warming of global average temperatures by 2100, as the world hits 450 parts - per - million of greenhouse gases in 2030 and goes on to put out enough greenhouse gas pollution to achieve as much as 1300 ppm by 2100.

Global average sea level has risen by roughly 0.11 inch (3 millimeters) per year since 1993 due to a combination of water expanding as it warms and melting ice sheets.

Even with more beetles munching on them, an increase of 2 °C — the current target cap for global warming — bumps the average mosquito's probability of survival into adulthood by 53 %.

Aerosols are already known to reduce global warming: The vast clouds of sulfates thrown up in the 1991 eruption of Mount Pinatubo in the Philippines, for example, reduced average global temperatures by about half a degree Celsius.

In its annual analysis of trends in global carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial lglobal carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial lGlobal Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial lglobal average warming less than 2 °C above pre-industrial levels.

«The long - term baseline temperature is about three tens of a degree (C) warmer than it was when the big El Niño of 1997 - 1998 began, and that event set the one - month record with an average global temperature that was 0.66 C (almost 1.2 degrees F) warmer than normal in April 1998.»

The continued top ranking for 2016 may be due in part to El Niño, a cyclical climate event characterized by warmer - than - average waters in the equatorial Pacific Ocean, which generated some of the global heat that year.

January through August of 1998 are all in the 14 warmest months in the satellite record, and that El Niño started when global temperatures were somewhat chilled; the global average temperature in May 1997 was 0.14 C (about 0.25 degrees F) cooler than the long - term seasonal norm for May.

Surface water in the region is warming at twice the rate of the global average.

Since the 1970s the northern polar region has warmed faster than global averages by a factor or two or more, in a process of «Arctic amplification» which is linked to a drastic reduction in sea ice.

The impacts of global warming are felt especially in mountainous regions, where the rise in temperatures is above average, affecting both glacierized landscapes and water resources.

The atmosphere in the polar regions has warmed at about twice the average rate of global warming with Arctic coasts experiencing a rise in the occurrence of storm surges.

There is some debate about when the «Little Ice Age» — the last time when global average temperatures were falling — ended, but it is well documented that glaciers started receding around that time as a result of the relative warming of the planet.

So the report notes that the current «pause» in new global average temperature records since 1998 — a year that saw the second strongest El Nino on record and shattered warming records — does not reflect the long - term trend and may be explained by the oceans absorbing the majority of the extra heat trapped by greenhouse gases as well as the cooling contributions of volcanic eruptions.