Sentences with phrase «if average global temperatures rise»

«We have to control methane immediately, and natural gas is the largest methane pollution source in the United States,» said Howarth, who explains in an upcoming journal article that Earth may reach the point of no return if average global temperatures rise by 1.5 to 2 degrees Celsius in future decades.

«We have to control methane immediately, and natural gas is the largest methane pollution source in the United States,» said Robert Howarth, the David R. Atkinson Professor of Ecology and Environmental Biology, who explains in an upcoming journal article that Earth may reach the point of no return if average global temperatures rise by 1.5 to 2 degrees Celsius in future decades.

If average global temperatures rise by just 3 °C, then Europe's drought risk could increase to double the area faced with drying out.

The story was based on a paper presented by Steven Sherwood of the University of New South Wales, who adds human physiology into the climate models to suggest that «physiological limits of the human body will begin to render places impossible to support human life if the average global temperature rises by 7C on pre-industrial levels».

Not exact matches

If nothing is done to prevent the expected rise of 2 degrees Celsius in global average temperatures by 2050:

If global warming continues unabated, by 2100, average global temperatures could rise by 4.25 degrees Celsius compared with current temperatures.

In their latest paper, published in the February issue of Nature Geoscience, Dr Philip Goodwin from the University of Southampton and Professor Ric Williams from the University of Liverpool have projected that if immediate action isn't taken, Earth's global average temperature is likely to rise to 1.5 °C above the period before the industrial revolution within the next 17 - 18 years, and to 2.0 °C in 35 - 41 years respectively if the carbon emission rate remains at its present - day value.

If we can rein in emissions enough to keep global average temperatures from rising 2 C (3.6 F), we can avert the biggest shocks to Earth's system, scientists say.

«Rises in global average temperatures of this magnitude will have profound impacts on the world and the economies of many countries if we don't urgently start to curb our emissions.

Global average temperatures will rise at least 4 °C by 2100 and potentially more than 8 °C by 2200 if carbon dioxide emissions are not reduced according to new research published in Nature.

Global average temperatures will rise at least 4 degrees C by 2100 and potentially more than 8 degrees C by 2200 if carbon dioxide emissions are not reduced, according to new research.

Up to 30 percent of plant and animal species could face extinction if the global average temperature rises more than roughly 3 to 5 °C.

If global average temperature were to rise 2.5 °F (1.5 °C) above where it stood in pre-industrial times say earth scientist Anton Vaks of Oxford University and an international team of collaborators (and it's already more than halfway there), permafrost across much of northern Canada and Siberia could start to weaken and decay.

Action on climate change needs to be scaled up and accelerated without delay if the world is to have a running chance of keeping a global average temperature rise below 2 degrees Celsius this century.

If one postulates that the global average surface temperature tracks the CO2 concentration in the atmosphere, possibly with some delay, then when the CO2 concentration continues to rise monotonically but the global average surface temperature shows fluctuations as a function of time with changes in slope (periods wherein it decreases), then you must throw the postulate away.

If I understand them, a reduction of 50 - 85 % of CO2 emissions will be required to stabilize at year 2000 levels, which may be expected to produce a global average temperature rise of around 2C.

For example, if this contribution were to grow linearly with global average temperature change, the upper ranges of sea level rise for SRES scenarios shown in Table SPM - 3 would increase by 0.1 m to 0.2 m. Larger values can not be excluded, but understanding of these effects is too limited to assess their likelihood or provide a best estimate or an upper bound for sea level rise.

Hotter temperatures: If emissions keep rising unchecked, then global average surface temperatures will be at least 2ºC higher (3.6 ºF) than pre-industrial levels by 2100 — and possibly 3ºC or 4ºC or more.

One recent study found that the average global temperature would rise another 3.2 ° by the end of the century even if human carbon emissions dropped to zero tomorrow, a scenario that is, of course, extremely unlikely.

A 2008 report commissioned by WWF warned that if global temperatures rise 3.6 degrees Fahrenheit (2 degrees Celsius) above pre-industrial averages, sea ice in the Southern Ocean could shrink by 10 to 15 percent.

If we don't dramatically reduce our carbon emissions in the next two decades, the average global temperature is likely to rise by more than 2 ˚C.

He estimated that if CO2 concentrations in the atmosphere double, global average temperatures would rise by 5 to 6 degrees Celsius.

It used a simple mathematical model, and IPCC data, to suggest that even if CO2 concentrations in the atmosphere doubled, which might take the rest of the century, average global temperature would not rise by much more than 1 degree Celsius.

How much must I reduce my greenhouse gas (GHG) emissions if I want to do my fair share to contribute towards the global effort to keep global warming below a 2 °C rise in average temperature over preindustrial times?

Pachauri told lawmakers that greenhouse gas emissions must peak in 2015 - and drop 25 to 40 percent below 1990 levels by 2020 - if the world is to keep global average temperatures from rising above 2.4 degrees Celsius.

The fact is that if we can't greatly reduce fossil fuel use by the 2030 - 2040 range, by 2075 be will see a global average temperature rise of 3.5 to 4.0 degrees Celsius, which is also just about the time frame for world phosphate supplies to enter critical shortages that will eventually cut crop yields in half and require twice as much land and water to grow the same yield as previously.

If we continue with business as usual, burning ever more oil, coal, and natural gas, the global average temperature is projected to rise some 11 degrees Fahrenheit (6 degrees Celsius) by the end of this century.

«The notion it would be catastrophic if carbon dioxide were to increase and average global temperature were to rise a few degrees is preposterous.

If the planet is getting warmer the average global temperature would rise.

One study estimates that there are likely to be places on Earth where unprotected humans without cooling mechanisms, such as air conditioning, would die in less than six hours if global average surface temperature rises by about 12.6 ° F (7 ° C).16 With warming of 19.8 - 21.6 ° F (11 - 12 ° C), this same study projects that regions where approximately half of the world's people now live could become intolerable.7

If all known fossil fuel reserves are used up, average global temperatures will rise by at least 10 degrees Celsius, a new study revealed.

In order to understand more about what the human impact of high - end climate change might be, and therefore what would happen if a successful agreement can not be reached at Copenhagen, the UK's Met Office Hadley Centre has produced a map outlining some of the impacts that may occur if the global average temperature rises by 4 °C (7 °F) above the pre-industrial climate average.

Climatologist Dr. Pielke Sr. rips RealClimate.org's claims: «It is straightforward to shed doubt on Gavin Schmidt's (and the IPCC) claim» — «If the increase in anthropogenic greenhouse gas concentration were so dominate we would expect the global average [annual] lower troposphere temperature to more - or less monotonically continue to rise in the last decade or so.

If we continue to emit ever - greater quantities of CO2 and other greenhouse gases into the atmosphere, then average global temperatures will rise by 2 °C over the next three decades compared to pre-industrial times.

If risk rises with average global temperatures, they might have a point.

The reality will be rather different If we continue to emit ever - greater quantities of CO2 and other greenhouse gases into the atmosphere, then average global temperatures will rise by 2 °C over the next three decades compared to pre-industrial times.

23 Thousands of years ago Temperature change (° c) Carbon dioxide (ppmv) Temperature Change through time Compares to the present temperature Current Level Atmospheric Carbon Dioxide Concentration and Temperature change Current Level 2100 CO2 Concentration in the atmosphere (Antarctic Ice Core) If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 1Temperature change (° c) Carbon dioxide (ppmv) Temperature Change through time Compares to the present temperature Current Level Atmospheric Carbon Dioxide Concentration and Temperature change Current Level 2100 CO2 Concentration in the atmosphere (Antarctic Ice Core) If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 1Temperature Change through time Compares to the present temperature Current Level Atmospheric Carbon Dioxide Concentration and Temperature change Current Level 2100 CO2 Concentration in the atmosphere (Antarctic Ice Core) If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 1temperature Current Level Atmospheric Carbon Dioxide Concentration and Temperature change Current Level 2100 CO2 Concentration in the atmosphere (Antarctic Ice Core) If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 1Temperature change Current Level 2100 CO2 Concentration in the atmosphere (Antarctic Ice Core) If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees If nothing is done to slow greenhouse gas emissions... CO 2 concentrations will likely be more than 700 ppm by 2100 Global average temperatures projected to rise at 2.5 - 10.4 degrees

If we don't act, average global temperature will rise x degrees by 2100.

But the truth is even if rising CO2 were to cause.1 C per year to average global temperature, it would not be important.

The Grassroots Global Justice Alliance, an international group of US - based grass roots organisations, says there are only four years left to take the radical action needed if the Paris Agreement's ambitious target of keeping global average temperature rise at no more than 1 ° 5C above pre-industrial levels is to be achieved (Paris's other, more modest target is Global Justice Alliance, an international group of US - based grass roots organisations, says there are only four years left to take the radical action needed if the Paris Agreement's ambitious target of keeping global average temperature rise at no more than 1 ° 5C above pre-industrial levels is to be achieved (Paris's other, more modest target is global average temperature rise at no more than 1 ° 5C above pre-industrial levels is to be achieved (Paris's other, more modest target is 2 °C).

The Intergovernmental Panel on Climate Change's (IPCC) newest installment, Working Group III (WGIII): Mitigation and Climate Change, highlights an important message: It's still possible to limit average global temperature rise to 2 °C — but only if the world rapidly reduces emissions and changes its current energy mix.

I'll be more inclined to believe you if you could adequately describe the mechanism by which even one of those — hardly unprecedented — crop failures was caused by a barely perceptible rise in average global temperature.

Sea level rise here is happening 3 - 4 times as quickly as the global average — with the expectation, the USGS says, that «if global temperatures continue to rise, rates of sea level rise in this area are expected to continue increasing.»

A new report from Oxfam tries to put a human face on the suffering that climate change will cause in the future, even if we muster the political will to hold global average temperature rise to 2 °C, as well as what's already happening around the globe.

A recent report from the British government said if no action is taken to stop climate change, average global temperatures will rise by 3.6 degrees to 5.4 degrees within the next 50 years or so, and the Earth will experience several degrees more of warming if emissions continue to grow.

But given that carbon dioxide levels were now substantially higher than anything in the past two millions of years, in either glacials or interglacials, it had become abundantly clear that the greenhouse effect was something we needed to take extremely seriously: even if the precise future increase in temperature was still an unknown quantity, with a fairly wide error - range, models indicated that for a doubling of carbon dioxide from pre-industrial levels, a rise of three degrees celsius as a global average was the most likely outcome.

Therefore if what is meant by global warming means is earth's average temperature has been rising for more than century, the burden of proof can't be that there is no human influence.

Climate models and efforts to explain global temperature changes over the past century suggest that the average global temperature will rise by between 1.5 º and 4.5 ºC if the atmospheric COconcentration doubles.

The important line to note is the dashed black line, which indicates how local temperatures would change if they rose at the same rate as the global average.

Even if we succeed in holding global temperature rise to 2C or 1.5 C above pre-industrial levels, both average and extreme temperatures in some regions could still climb way beyond these limits, the researchers say.