Sentences with phrase «warming emissions over»

To ensure that we «count carbs» accurately, by explaining why we need a comprehensive accounting system for carbon emissions — one that measures global warming emissions over a transportation fuel's entire life cycle.

Not exact matches

Alice Hill, who directed resilience policy for the National Security Council in the Obama administration, said the wider debate over cutting climate - warming emissions may have distracted people from promptly pursuing ways to reduce risks and economic and societal costs from natural disasters.

China's push to become a major maker of solar panels has driven down global prices by close to 90 percent over the past decade, helping international efforts to curb emissions of planet - warming greenhouse gases.

Over the course of the experiment, emissions of planet - warming methane from the dung of antibiotic - dosed cows were, on average, 80 % higher than those from the manure of untreated cattle, the team reports online today in the Proceedings of the Royal Society B.

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.

While cutting carbon dioxide is the only way to halt warming over the long term, experts said, earlier research has come to similar conclusions about the short - term advantages of limiting black carbon emissions.

But reducing emissions of short - lived substances that help heat the planet «could significantly reduce the rate of warming over the next few decades.»

Previous research has shown the tropical Pacific has warmed over the past century due to increased greenhouse gas emissions.

It says nations will have to impose drastic curbs on their still rising greenhouse gas emissions to keep a promise made by almost 200 countries in 2010 to limit global warming to less than 2 degrees Celsius (3.6 Fahrenheit) over pre-industrial times.

The push to peak global emissions and keep warming below 2 degrees Celsius has opened rifts over whether the world should embrace stepping stones like nuclear and natural gas power or go full tilt toward a 100 percent zero - carbon renewable energy economy.

It turns out Earth will warm more slowly over this century than we thought it would, buying us a little more time to cut greenhouse gas emissions.

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.

A few of the main points of the third assessment report issued in 2001 include: An increasing body of observations gives a collective picture of a warming world and other changes in the climate system; emissions of greenhouse gases and aerosols due to human activities continue to alter the atmosphere in ways that are expected to affect the climate; confidence in the ability of models to project future climate has increased; and there is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities.

Rather than using complex computer models to estimate the effects of greenhouse - gas emissions, Lovejoy examines historical data to assess the competing hypothesis: that warming over the past century is due to natural long - term variations in temperature.

Scientists can confidently say that Earth is warming due to greenhouse gas emissions caused by humans, but data on climate trends over the Antarctic and the surrounding Southern Ocean only go back to 1979 when regular satellite observations began.

«While methane and carbon dioxide emissions following thaw lead to immediate radiative warming,» the authors write, «carbon uptake in peat - rich sediments occurs over millennial time scales.»

There are multiple mitigation pathways to achieve the substantial emissions reductions over the next few decades necessary to limit, with a greater than 66 % chance, the warming to 2 degrees C — the goal set by governments.

As the region warms due to increased greenhouse - gas emissions, ice melts, reducing Antarctica's elevation over centuries or thousands of years.

In fact, even if the world does cool over the next few years as some predict, it in no way undermines the certainty about long - term warming due to greenhouse gas emissions.

It suggests that Earth will warm more slowly over this century than we thought it would, buying us a little more time to cut our greenhouse gas emissions and prevent dangerous climate change.

Understanding how carbon flows between land, air and water is key to predicting how much greenhouse gas emissions the earth, atmosphere and ocean can tolerate over a given time period to keep global warming and climate change at thresholds considered tolerable.

BOULDER — Drastic, economy - changing cuts to greenhouse gas emissions will spare the planet half the trauma expected over the next century as the Earth warms.

Dlugokencky, in an e-mail, wrote there have been «no significant increases in Arctic emissions over the past few decades» and that it would take «centuries» for warming to affect methane hydrate — bearing sediments.

The sum of these efforts in developing countries will reduce growth in warming emissions by billions of metric tons of warming gases per year over the coming decade.

Scientists measured how much carbon dioxide the artificially warmed plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and increased their carbon emissions less than expected.

The amount of warming caused by CO2 might have been masked over the years by accompanying aerosol emissions.

The key conclusions were that: It is «unequivocal» that global warming is occurring; the probability that this is caused by natural climatic processes is less than 5 %; and the probability that this is caused by human emissions of greenhouse gases is over 90 %.

Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

The letter notes that «Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

Warming fueled by greenhouse gas emissions continues to rewrite the record books: Over the past several weeks, heat records continued to fall at global, national, and local scales.

As it turned out, the world's temperature has risen about 0.8 °C (1.4 °F) and mainstream scientists continue to predict, with increasing urgency, that if emissions are not curtailed, carbon pollution would lock in warming of as much as 3 to 6 °C (or 5 to 11 °F) over the next several decades.

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Put together, all of the warming caused by biomass - related CO2 emissions and black and brown carbon particles creates a planetary warming effect of 2 degrees Celsius (35.6 degrees Fahrenheit) over the two - decade period simulated by the computer.

«This study confirms that, even when using different approaches, the observed warming seen over the last 50 years is dominated by man - made emissions of greenhouse gases.

Many climate model simulations focus on the amount of warming caused by emissions sustained over decades or centuries, but the timing of temperature increases caused by particular emission has been largely overlooked.

Over what time period might this savannization process release carbon «equivalent to several years of worldwide carbon emissions», and how does that affect the assessment offered by Gore, Hansen and others that we have perhaps ten years in which to substantially reduce CO2 emissions to avoid irreversible catastrophic warming?

Contemporary global mean sea level rise will continue over many centuries as a consequence of anthropogenic climate warming, with the detailed pace and final amount of rise depending substantially on future greenhouse gas emissions.

The eventual warming from 1000 GtC fossil fuel emissions likely would reach well over 2 °C, for several reasons.

Heat trapping greenhouse - gas emissions are the obvious culprit, since they've increased dramatically over that same 50 years, but scientists prefer hard evidence to presumption, so a team from the British Antarctic Survey has been drilling into ancient ice to see how the current warming stacks up against what happened in the ancient past.

Cooling sea - surface temperatures over the tropical Pacific Ocean — part of a natural warm and cold cycle — may explain why global average temperatures have stabilized in recent years, even as greenhouse gas emissions have been warming the planet.

Over two dozen lawmakers who favored efforts to clamp down on heat - trapping emissions were swept away on Tuesday's anti-incumbent wave, ushering in a new class of Republicans who doubt global warming science and want to upend President Barack Obama's environmental and energy policies.

Ever increasing human CO2 emissions have resulted in over 15 years of no warming.

And on that — the predictions — the theory of global warming seems to falter: Carbon dioxide emissions are growing faster than ever, especially from the Chinese over the past decade.

But policymakers typically ignore methane's warming potential over 20 years (GWP20) when assembling a nation's emissions inventory.

We find a higher sensitivity of extreme events to aerosol reductions, per degree of surface warming, in particular over the major aerosol emission regions.

CO2 emissions in particular continue to increase at a rapid rate; ii) the effect of these gases is to warm the climate and it is very likely that most of the warming over the last 50 years was in fact driven by these increases; and iii) the sensitivity of the climate is very likely large enough that serious consequences can be expected if carbon emissions continue on this path.

What's more important than any records being set is the pattern of warming and cooling we've seen over the last 100 years or so, and that pattern is NOT consistent with a correlation between warming and CO2 emissions.

AND finaly June is the month that shows there was absolutely no warming (regardless of the CO2 content or emissions) for whole of 350 years of the longest and most scrutinized temperature record there is: http://www.vukcevic.talktalk.net/CET-Jun.htm Over to you...,

Our activities are warming the world's atmosphere at such a rate that most of our agriculture will be seriously dislocated over the next few decades — even if we were to get down to business now and start controlling our emissions of carbon dioxide and other greenhouse gases.

On the contrary, roughly 80 percent of HOT is devoted to on - the - ground reporting that focuses on solutions — not just the relatively well known options for reducing greenhouse gas emissions and otherwise limiting global warming, but especially the related but much less recognized imperative of preparing our societies for the many significant climate impacts (e.g., stronger storms, deeper droughts, harsher heat waves, etc.,) that, alas, are now unavoidable over the years ahead.