Sentences with phrase «about modeling climate»

The paper is not about detecting and attributing climate change, it is about modeling climate.

Naomi Oreskes once held doubts about modeling climate science, the main source of alarmism about climate change.

How can we even think about modeling the climate of the next 100 years if we can not model how to produce such a big feature of our climate today?»

Not exact matches

He dug into the numbers, consulting with a friend from NASA, and concluded that some of Al Gore's models were too conservative about the rate and impact of climate change.

Blank, who recently spent two weeks in Chile lecturing about innovation, says Start - Up Chile could offer a breakthrough model for other small countries hoping to create a start - up climate.

From those models, they can make estimates about whether a storm's wind or rain output was influenced by climate change.

I confess that I have become somewhat blasé about the range of exciting — I think revolutionary is probably more accurate — technologies that we are rolling out today: our work in genomics and its translation into varieties that are reaching poor farmers today; our innovative integration of long — term and multilocation trials with crop models and modern IT and communications technology to reach farmers in ways we never even imagined five years ago; our vision to create a C4 rice and see to it that Golden Rice reaches poor and hungry children; maintaining productivity gains in the face of dynamic pests and pathogens; understanding the nature of the rice grain and what makes for good quality; our many efforts to change the way rice is grown to meet the challenges of changing rural economies, changing societies, and a changing climate; and, our extraordinary array of partnerships that has placed us at the forefront of the CGIAR change process through the Global Rice Science Partnership.

«Even our upper estimate, 0.01 bar, is an insignificant amount in comparison to the atmosphere required to maintain a sufficiently strong greenhouse effect, about 1 bar or more according to climate models.»

Statisticians can analyze these climate models along with direct observations to learn about Earth's climate.

Troublingly, said Evans, when the team compared their data with various modern climate models under Eocene conditions, most models underestimated polar amplification by about 50 percent.

After plugging all this information into computer models, they found that access to scientific information has a minimal effect on the public's opinion about climate change, while weather extremes have no noticeable effect whatsoever (which slightly contrasts with a 2011 study).

Similar conclusions were reached about impacts of climate change on wheat in the UK, where climate change models are predicting warmer, wetter winters for the country.

If so, the increased frequency and intensity of heat waves forecast by climate change models could bring about considerable changes to these environments,» Orizaola concludes.

When they corrected the error, Wentz and Schabel derived a warming trend of about 0.07 °C per decade, more in line with surface thermometers and climate models.

By improving the understanding of how much radiation CO2 absorbs, uncertainties in modelling climate change will be reduced and more accurate predictions can be made about how much Earth is likely to warm over the next few decades.

He wants to know why Earth's global climate models break down on Venus, which has an atmosphere composed of 97 percent carbon dioxide — and what that reveals about the hidden fine - tunings of Earth models.

EPRI's conclusions about energy technology gains were fed into a second computer model to assess the costs of stripping 80 percent of 1990 - level carbon emissions out of the electricity sector by 2050, approximating the goal of the House - passed climate bill.

Over the past 34 years, rainfall in Uganda has decreased by about 12 percent even though many of the global climate models predict an increase in rainfall for the area, according to an international team of researchers.

About 80 percent of the 23 climate models used by the Intergovernmental Panel on Climate Change predict some degree of drought in the Amazon if greenhouse gas emissions keep climbing, hclimate models used by the Intergovernmental Panel on Climate Change predict some degree of drought in the Amazon if greenhouse gas emissions keep climbing, hClimate Change predict some degree of drought in the Amazon if greenhouse gas emissions keep climbing, he said.

The researchers then used a mathematical model that combined the conflict data with temperature and rainfall projections through 2050 to come up with predictions about the likelihood of climate - related violence in the future.

Penn State climate modeler Michael Mann talks about what computer models can tell us — and what they don't need to.

Climate models suggest that widespread glaciations couldn't take place at that time unless CO2 levels dropped to about eight times what they are at present, says Tim Lenton, an earth scientist at the University of Exeter in the United Kingdom.

But early on Jenkins realized that the global climate models are too coarse to tell much about what's going to happen in the Sahelian zone.

The method combines a model for systems such as weather or climate with real - world data points to develop predictions about the future.

It will never be possible to substantiate such a claim about an individual climatic event, but most climate models predict that the frequency and intensity of such events will increase as the world warms.

James Hansen, director of NASA's Goddard Institute for Space Studies in New York City and a vociferous advocate for lowering global greenhouse gas emissions, was chosen for his work modeling Earth's climate, predicting global warming, and warning the world about the consequences.

The impact of these results is wide - reaching, and Dr Pullen suggests that it may even change how we think about global climate data: «Climate models need to incorporate genetic elements because at present most do not, and their predictions would be much improved with a better understanding of plant carbon demand.climate data: «Climate models need to incorporate genetic elements because at present most do not, and their predictions would be much improved with a better understanding of plant carbon demand.Climate models need to incorporate genetic elements because at present most do not, and their predictions would be much improved with a better understanding of plant carbon demand.»

About a dozen research groups recently launched a new effort called PlioMIP2, or Pliocene Model Intercomparison Project, Phase 2, to model the climate of a time somewhat similar to today in the mid-Pliocene, about 3.205 million yearsAbout a dozen research groups recently launched a new effort called PlioMIP2, or Pliocene Model Intercomparison Project, Phase 2, to model the climate of a time somewhat similar to today in the mid-Pliocene, about 3.205 million yearsModel Intercomparison Project, Phase 2, to model the climate of a time somewhat similar to today in the mid-Pliocene, about 3.205 million yearsmodel the climate of a time somewhat similar to today in the mid-Pliocene, about 3.205 million yearsabout 3.205 million years ago.

Uncertainty about rain, little uncertainty about sea level rise Climate change could also affect precipitation in California, though the two models USGS used in its research produced different results.

To model the projected impact of climate change on marine biodiversity, the researchers used climate - velocity trajectories, a measurement which combines the rate and direction of movement of ocean temperature bands over time, together with information about thermal tolerance and habitat preference.

Gentine and his team are now exploring ways to model how biosphere - atmosphere interactions may change with a shifting climate, as well as learning more about the drivers of photosynthesis, in order to better understand atmospheric variability.

They used two different climate models, each with a different sensitivity to carbon dioxide, to project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.

The scientists generated the enormous dataset by running NCAR's Weather Research and Forecasting model at an extremely high resolution of about 4 kilometers (about 2.5 miles), across the entire contiguous U.S. Typical climate models only resolve to about 100 kilometers (about 62 miles)-- not nearly the detail available in the new dataset.

It was interesting to read about the outcomes predicted by climate models for the year 2100 based on crucial decisions...

If only modest action is taken to reign in greenhouse gas emissions, the model predicts that pikas will disappear from about 75 percent of sites by 2070 (51 to 88 percent, depending on the global climate model used).

New climate models — made by using estimated radiation levels from that time, along with data from the Magellan spacecraft about Venus's current surface — suggest that Venus would have been only 11 °C (52 °F).

The newly recovered descriptions could provide valuable perspective about past conditions and possibly help scientists hone computer models that predict changes in the region's climate.

«The change in flux described by our model happens over extremely long time periods, and it would be a mistake to think that these processes that are bringing about any of the atmospheric changes are occurring due to anthropomorphic climate change,» he said.

With aggressive action to reduce greenhouse gases, the model predicts that only about 51 percent of sites will suffer local extinction (39 to 79 percent, depending on the global climate model).

In the journal Nature Climate Change it is demonstrated, that modeled DMS emissions decrease by about 18 (± 3) % in 2100 compared to preindustrial times as a result of the combined effects of ocean acidification and climate Climate Change it is demonstrated, that modeled DMS emissions decrease by about 18 (± 3) % in 2100 compared to preindustrial times as a result of the combined effects of ocean acidification and climate climate change.

«A challenge for the coming years is to use these kinds of climate models to be able to make predictions about populations and ecosystems in the future.

The more data scientists can gather about Antarctic sea ice, the more they can unpick why climate models struggle to accurately predict its extent.

That uncertainty is represented in the latest crop of global climate models, which assume a climate sensitivity of anywhere from about 3 to 8 degrees F.

The researchers plugged this information into a computer model to find out the effect on the climate of increasing tree cover and diminishing grassland and found that it led to a global temperature increase of about 0.1 °C (Geophysical Research Letters, DOI: 10.1029 / 2010gl043985).

Isaac Held, a National Oceanic and Atmospheric Administration climate scientist, said he agreed with the researchers about the «the importance of getting the ice - liquid ratio in mixed - phase clouds right,» but he doesn't agree that global climate models generally underestimate climate sensitivity.

«Our goal is to learn enough about these convoluted processes to represent them (for the first time) in the models that scientists use to predict how our climate will evolve over the 21st century and beyond.»

To simulate the tropical climate to learn more about its processes, climate scientists have typically been relying on general circulation models (GCMs) to simulate the tropical climate.

Tree growth lags below normal for several years following droughts, a detail about carbon sequestration that climate models currently overlook.

There are about 30 climate models available today, and each has slightly different physics, which means their forecasts do not always match.

Those data, to be collected this year and next, could improve climate models, which account poorly for these atmospheric interactions and contain «horrific» uncertainties about the levels and behaviour of water vapour at stratospheric altitudes, Austin says.