Sentences with phrase «by unabated emissions»

So it's utterly unremarkable to find 49 people, including astronauts and engineers, who would publicly reject James Hansen's view of the dangers posed by unabated emissions of carbon dioxide, or the Obama administration's approach to the space agency's research programs, news releases and other forms of public output on climate, which is markedly different than that of the last Bush administration.

Why does «same as it ever was» keep coming to mind when examining the responses of America's elected «leaders» to durable challenges — whether confronting deficits and the debt, the glaring lack of alternatives to oil and the risks posed by unabated emissions of greenhouse gases.

Not exact matches

At least two studies published since 2010 — one report from the United Nations Environment Programme in 2011 and a follow - up published in Science last year — suggested that significantly reducing the emissions of soot and methane could trim human - caused warming by at least 0.5 °C (0.9 ° F) by 2050, compared with an increase of about 1 °C if those emissions continued unabated.

Both had been created by running the NCAR - based Community Earth System Model 15 times, with one assuming that greenhouse gas emissions remain unabated and the other assuming that society reduces emissions.

The authors estimate that if globe - warming emission continue unabated, fuel capacities and payload weights will have to be reduced by as much as 4 percent on the hottest days for some aircraft.

For example, under the «business - as - usual» climate scenario (called RCP8.5 by the UN IPCC, which assumes that emissions continue to grow unabated), there is a 50 per cent chance that local sea - level rise will exceed 22 centimeters at Oslo.

This choice, they say, is the sea level rise «locked in» by the two warming scenarios: the target of two degrees Celsius vs. the sea level rise associated with unabated emissions and four degrees warming by the end of the century.

Projections based on 29 climate models suggest that the number of high wildfire potential days each year could increase by nearly 50 percent by 2050 if greenhouse gas emissions continue unabated.

Only if this is wrong, and the true value is lower, can we escape the fact that unabated emissions of greenhouse gases will lead to the warming projected by the IPCC.

When emissions continue unabated (RCP8.5 scenario), the IPCC expects 12 % to 54 % decline by 2100 (see also the current probabilistic projections of Schleussner et al. 2014).

And of course there's the hard reality that the risks posed by an unabated rise in greenhouse - gas emissions are still mainly somewhere and someday while our attention, as individuals and communities, is mostly on the here and now.

Updates appended A new analysis of Antarctica's vast ice sheet in a world heated by unabated greenhouse gas emissions from fossil fuel burning comes to a stark, if unsurprising, conclusion: Burn it all, lose it all.

And there's been plenty of fine reporting for decades on the growing risks posed by unabated greenhouse gas emissions.

But the plausible effects of unabated CO2 emissions are 3 - 4C rise by the end of the century (with the Arctic rising twice this?).

Further climate change is expected to intensify these effects on North Sea plankton, cod, and marine ecosystems.7 By 2100, scientists estimate that average world sea surface temperatures could rise as much as 5.4 ° F (3 ° C) if our heat - trapping emissions continue unabated.13, 14

As the world's largest store of freshwater, Antarctica has the potential to contribute more than a meter of sea level rise by 2100 and more than 15 metres by 2500, if emissions continue unabated.

With unabated emissions, the IPCC estimates that by the year 2300, global sea levels will rise by 1 - 3 meters.

By 2100, models project that many regions — including, the Mediterranean, Southwest US and southern Africa — are likely to get drier should greenhouse gas emissions continue unabated.

What about natural variability (which is blamed by Met Office for the current «pause», despite unabated GHG emissions)?

With unabated emissions (and not only for the highest scenario), the IPCC estimates that by the year 2300 global sea levels will rise by 1 — 3 meters.

However you slice it, lolwot, there is a current «pause» (or «standstill») in the warming of the «globally and annually averaged land and sea surface temperature anomaly» (used by IPCC to measure «global warming»), despite unabated human GHG emissions and CO2 levels (Mauna Loa) reaching record levels.

Many scientists estimate that if greenhouse - gas emissions continue unabated, the average temperature could increase by four degrees Celsius or more by the end of the century — a scenario that might, as Elizabeth Kolbert wrote recently in The New Yorker, «transform the globe into a patchwork of drowned cities, desertifying croplands, and collapsing ecosystems.»

If emissions were to continue unabated and global temperature increases exceed 4 °C, increased rainfall would further enhance the risk of floods by raising river levels, which, combined with sea level rise, could impact as many as 12 million people in Bangladesh, especially if a storm surge from a tropical cyclone compounded these effects.

Another recent study projects that with unabated greenhouse gas emissions, oxygen lows will fall below their current range by midcentury.

New research suggested that if high levels of emissions continue unabated, sea levels could rise by nearly twice as much as expected by the end of this century.

Modeling shows that if emissions of climate - warming greenhouse gases continue unabated, temperatures could rise 4 degrees C above preindustrial levels by the end of the century.

The ocean's absorption of anthropogenic CO2 has already resulted in more than a 30 % increase in the acidity of ocean surface waters, at a rate likely faster than anything experienced in the past 300 million years, and ocean acidity could increase by 150 % to 200 % by the end of the century if CO2 emissions continue unabated (Orr et al. 2005; Feely et al. 2009; Hönisch et al. 2012)

If the emissions that cause global warming continue unabated, scientists expect the amount of rainfall during the heaviest precipitation events across country to increase more than 40 percent by the end of the century.