Sentences with phrase «if planetary warming»
No more than one trillion metric tons of carbon could be burned and the resulting gases released into the atmosphere, the panel found, if planetary warming is to be kept below 3.6 degrees Fahrenheit (2 degrees Celsius) above the level of preindustrial times.
https://www.nytimes.com/ Not exact matches
«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.
If human - induced global warming, among other factors such as human - driven pollution and human - forced overpopulation, serve decisively to precipitate the massive extinction of biodiversity, the irreversible degradation of Earth's environment and the reckless dissipation of its resources, so as to make our planetary home unfit for life as we know it, then is no one to bear responsibility for such a colossal wreckage as we could help to perpetrate in these early years of Century XXI?
but even if the current tooo - short - to - call cooling trend reverses, and it is proved that co2 MIGHT have some limited effect on planetary warming, then the question is, how much warming?
[Response: What if we postulate a feedback between ozone depletion, which causes people to get better sun tans, warming the climate due to decreasing planetary albedo?
If Gray and Idso are correct — a doubling of atmospheric CO2 will result in only roughly 0.3 C warming — then roughly 0.5 C of the 0.7 C warming in the last 70 years was due to solar magnetic cycle modulation of planetary cloud cover.
If global warming is really a planetary emergency, why won't he deliver the same talk for $ 50,000?
An area of tropical forest the size of India will be deforested in the next 35 years, burning through more than one - sixth of the remaining carbon that can be emitted if global warming is to be kept below 2 degrees Celsius (the «planetary carbon budget»), but many of these emissions could be cheaply avoided by putting a price on carbon.
If action is delayed, total investment costs will rise, the chances of stranded assets will increase and costly negative emission technologies will be needed to limit planetary warming.»
And to maintain or slightly increase planetary temperature is also very much a global good if — as Ruddiman and other scientists assert — the human production of greenhouse gases is helping to hold our planetary environment in its historic, benignly warm, interglacial mode.»
Where would AGW be if, after 71 years, we were just back to where we used to be under «normal» planetary warming?
If you are concerned about planetary climate, then it behooves you to consider the «history» of the planet before singling out something as paltry as the warming since the end of the Little Ice Age.
The «unnatural» warming so far seen is however trended strongly to the alterations to the planetary surface by Humanity over the past 400 years and the rebalance towards greater kinetic induction (in its cumulative effect) is now producing observable alterations not only to the Land Surface median Temperature, but to the Ocean (vie conduction / convection) and a still unconfirmed claim of a small overall rise in Median Atmospheric Temperature, which if «true» would place the Planetary Biosphere on the «Human Population Plot» with regard to «warminplanetary surface by Humanity over the past 400 years and the rebalance towards greater kinetic induction (in its cumulative effect) is now producing observable alterations not only to the Land Surface median Temperature, but to the Ocean (vie conduction / convection) and a still unconfirmed claim of a small overall rise in Median Atmospheric Temperature, which if «true» would place the Planetary Biosphere on the «Human Population Plot» with regard to «warminPlanetary Biosphere on the «Human Population Plot» with regard to «warming».
or the lack of indisputable proof that «warming» is caused by human actions... or the acknowledgement that IF there is actual «warming», that it may be caused by some much larger unknown cyclical planetary phenomenon that would take a millennia to track and research.
I should stop because this is going off - topic but if the total energy accumulation of the planetary surface (aka «global warming» which of course includes the oceans) is not continuous then... what?
1) Latitudinal temperature anomaly paradox (Strike 1) The latitudinal temperature anomaly paradox is the fact that the latitudinal pattern of warming in the last 50 years does match the pattern of warming that would occur if the recent increase in planetary temperature was caused by the CO2 mechanism.
They worked out how these proportions would change if the average planetary temperatures reach 2 °C above the «normal» of the pre-industrial world, and they found that human - induced global warming could already be responsible for 18 % of extremes of rain or snow, and 75 % of heatwaves worldwide.
For instance, given the physics of sulphate aerosols in the stratosphere (short wave reflectors, long wave absorbers), it would be surprising if putting in the aerosols seen during the Pinatubo eruption did not reduce the planetary temperature while warming the stratosphere in the model.
This report, which is unfortunately based on current science (unfortunately because current science is pretty terrifying) begins by noting that we have a mere 565 Gigatonnes of CO2 left in our shared planetary 2000 to 2050 carbon budget, if we intend to maintain a high probability (80 %) of holding the warming below 2C.
The science needed to estimate species survival rates if global warming continues throughout this century is not well developed, but it has been suggested that prolonged global warming could take a heavy toll on planetary life (27).
If the 195 nations that signed a climate accord in Paris in 2015 actually honour their collective vow to contain planetary average warming to about 1.5 °C above historic averages, there will still be record - breaking temperatures and more intense extremes of wet and dry — but over a smaller proportion of the globe, according to a new study.
The quantitative details of the surface vs. TOA budget reasoning are discussed heavily in Ray Pierrehumbert's upcoming «Principles of Planetary Climate» textbook, and he has also worked with David Archer to produce a historical account if this type of stuff in «The Warming Papers» (though I haven't looked at this yet, if it's even available right now).
Now you need to decide if this amount (about 0.05 W / m2, or 50mW) is really important in explaining why the Earth surface is warmer than the planetary emission temperature is.