Sentences with phrase «stable climate over»

The relatively stable climate over the past 10,000 years has allowed establishment of human civilization, by making it possible to create large stationary agricultural farms because we could rely on stable weather patterns.

Paleo studies show we've enjoyed a unusually stable climate over the histroy of civilization.

The explanation for this is thought to be that a stable climate over a long period of time is able to foster both.

Not exact matches

«The focus now should be creating a stable investment climate for renewables, making longer - term commitments to support less mature technologies, and putting in place incentives to deliver significantly increased investment in renewable power and heat generation required over the next decade.»

The scientists, part of a team headed by researchers at Laval University in Quebec, used climate reconstructions from 21,000 years ago to the present to predict where caribou habitat would likely exist and they matched reservoirs of high genetic diversity to areas with the most stable habitat over time.

THE Holocene, with its mild climate so remarkably stable and good for us, is over.

So in order to constrain the climate sensitivity from the paleo - data, we need to find a period under which our restricted subsystem is stable — i.e. all the boundary conditions are relatively constant, and the climate itself is stable over a long enough period that we can assume that the radiation is pretty much balanced.

There was a warm, stable climate with dispersed continents surounded by vast warm and shallow seas over continental shelves that provided light, oxygen, and nutrients for life to thrive in, because intense mountain - building also increased erosion and the discharge of eroded nutrients into those seas.

Stable isotopic compositions — variants of particular chemical elements — of such remains, recovered from soil and lake sediment, may help us better understand climate change over a long span of time.

Jim Hansen has said that if the Athabasca Oil Sands are tapped, it's «essentially game over» for any hope of achieving a stable climate.

The number, duration and intensity of heat waves (although highly variable over a small number of years) should not change over decades in a stable climate.

An analysis of the GISP2 ice core record from Greenland reveals that abrupt climate events appear to be paced by a 1,470 - year cycle with a period that is probably stable to within a few percent; with 95 % confidence the period is maintained to better than 12 % over at least 23 cycles.

«If the tar sands are thrown into the mix it is essentially game over,» Hansen, the National Aeronautics and Space Administration climatologist, explained about reclaiming a stable climate.

So if the current temperature stays at 1.2 C over the next 40 years, either sensitivity will get reduced in half or scientists will treat the climate as stable and move on to different topics, such as looking for alternatives to non-renewable fuels.

Either over the phone or in person, I've talked about climate justice and getting arrested with people ranging from first - year university students to folks with stable government jobs.

FWIW my take on climate change is that such change is an inevitable consequence of the many dynamics inherent in the various Earth systems in play and that the trajectory of Earth's climate over many millions of years has been remarkably stable.

Its location next to a subtropical high - pressure belt of descending air produces stable atmospheric conditions over most of its surface area, and the climate generally is dry.

Over the next 3 years the Ocean Colour Climate Change Initiative project aims to: Develop and validate algorithms to meet the Ocean Colour GCOS ECV requirements for consistent, stable, error - characterized global satellite data products from multi-sensor data archives; Produce and validate, within an R&D context, the most complete and consistent possible time series of multi-sensor global satellite data products for climate research and modelling; Optimize the impact of MERIS data on climate data records; Generate complete specifications for an operational production system; Strengthen inter-disciplinary cooperation between international Earth observation, climate research and modelling communities, in pursuit of scientific exceClimate Change Initiative project aims to: Develop and validate algorithms to meet the Ocean Colour GCOS ECV requirements for consistent, stable, error - characterized global satellite data products from multi-sensor data archives; Produce and validate, within an R&D context, the most complete and consistent possible time series of multi-sensor global satellite data products for climate research and modelling; Optimize the impact of MERIS data on climate data records; Generate complete specifications for an operational production system; Strengthen inter-disciplinary cooperation between international Earth observation, climate research and modelling communities, in pursuit of scientific exceclimate research and modelling; Optimize the impact of MERIS data on climate data records; Generate complete specifications for an operational production system; Strengthen inter-disciplinary cooperation between international Earth observation, climate research and modelling communities, in pursuit of scientific exceclimate data records; Generate complete specifications for an operational production system; Strengthen inter-disciplinary cooperation between international Earth observation, climate research and modelling communities, in pursuit of scientific exceclimate research and modelling communities, in pursuit of scientific excellence.

Obviously the climate of the region over the last thousands of years was everything but stable.

The most common ideas are that climate is in a stable equilibrium state or — alternatively — that warming is superimposed over a state of periodic climate change.

Since to me (and many scientists, although some wanted a lot more corroborative evidence, which they've also gotten) it makes absolutely no sense to presume that the earth would just go about its merry way and keep the climate nice and relatively stable for us (though this rare actual climate scientist pseudo skeptic seems to think it would, based upon some non scientific belief — see second half of this piece), when the earth changes climate easily as it is, climate is ultimately an expression of energy, it is stabilized (right now) by the oceans and ice sheets, and increasing the number of long term thermal radiation / heat energy absorbing and re radiating molecules to levels not seen on earth in several million years would add an enormous influx of energy to the lower atmosphere earth system, which would mildly warm the air and increasingly transfer energy to the earth over time, which in turn would start to alter those stabilizing systems (and which, with increasing ocean energy retention and accelerating polar ice sheet melting at both ends of the globe, is exactly what we've been seeing) and start to reinforce the same process until a new stases would be reached well after the atmospheric levels of ghg has stabilized.

Textbooks pointed out, for example, that there were plausible reasons to believe that tropical rain forests had scarcely changed over millions of years, so the climates that sustained the orchids and parrots must have been equally stable.

If you're a fan of living on a planet with a stable climate, this is the ultimate good news: The period of rapidly increasing greenhouse gas emissions may be over.

Just months before Lima hosts over 190 countries to advance international climate negotiations at COP 20, Katoomba XX — Peru will identify opportunities for climate policy and finance to align with other public and private investments and commitments to ensure that forests and other ecosystems continue to provide critical support for stable climate and resilient -LSB-...]

Again the climate has seen much greater swings both up and down over the past 20,000 years in comparisome to recnt times,, while the very recent climate say the climate for the past 150 years has featured one of the most stable climate intervals going back at least 20,000 years.

Just months before Lima hosts over 190 countries to advance international climate negotiations at COP 20, Katoomba XX — Peru will identify opportunities for climate policy and finance to align with other public and private investments and commitments to ensure that forests and other ecosystems continue to provide critical support for stable climate and resilient societies.

By stripping out the known changes due to global warming over that period - and recalculating the harvests using a «climate stable» crop model - the team came up with crop - yield numbers that would have applied, if global warming hadn't intervened.

If the Earth's greenhouse is caused by the forcing model used by climate scientists, then the GHE should be very stable over the course of the year because overall there is little change to the atmospheric concentration of the greenhouse gases that cause the GHE in the forcing model that they use.

Where response patterns are reasonably stable over time, this ratio can be maximised in a climate change scenario by using long (30 - year or more) averaging periods.

Coupled with paleontological analyses of marine microfossils in deep - sea sediments, these stable - isotope and trace - element microanalyses provide quantitative measures of global climate and ocean behavior over diverse time scales.

Although climate throughout Earth's history has varied from «snowball» conditions with global ice cover to «hothouse» conditions when glaciers all but disappeared, the climate over the past 10,000 years has been remarkably stable and favorable to human civilization.

While Kenya has a relatively stable political and economic climate, it has faced increasing terrorist attacks over the past fve years.