Sentences with phrase «studying earth climate»

But the results of studying earth climate in the past, indicates we currently in an unusual cool period, and that human evolution coincided with global cooling period.

Not exact matches

«This points to the unexplored risks of changing climate on aviation,» said study co-author Radley Horton, a climatologist at Columbia University's Lamont - Doherty Earth Observatory.

Scientific study of the Ice Age Floods is contributing to the understanding of cyclical climate change and of very large and destructive contemporary floods on Earth.

Assuming a rotation rate similar to today, the planet could have had a habitable climate until at least 715 million years ago (SN Online: 8/26/16), even if Venus got 70 percent more sunlight than Earth does now, physicist Michael Way of NASA's Goddard Institute for Space Studies in New York City and colleagues reported in 2016 in Geophysical Research Letters.

Studies suggest that using olivine to transform Earth's climate would require more mineral than can fit on its surface, so carbonation is unlikely to be solely responsible for changes on Mars.

And Gulick's seismic studies have taken him from pole to pole, mapping faults and glaciers, and bringing up cores to reveal Earth's ancient climate.

In order to reconstruct climate history, it is necessary to study natural climate archives since, in terms of Earth's history, humankind has only very recently begun measuring the planet.

It helps lay a foundation that scientists can apply to make predictions about what would allow life to alter exoplanets» atmospheres, and may inspire deeper studies, here on Earth, of how oceanic - atmospheric chemistry drives climate instability and influences the rise and fall of life through the ages.

Paleoclimatology is the study of climate change taken on the scale of the entire history of the earth.

Already sluggish, the sun may be slipping into several decades of hibernation that could exert a cooling effect on Earth's climate, several new studies suggest.

The study, which was published in the Proceedings of the National Academy of Sciences, presents a historical view of how climate change and the resulting habitat loss can affect Earth's biodiversity.

This is the first time anyone has examined regional climate change in the central United States by directly comparing the influence of greenhouse gas emissions to agriculture, says Nathan Mueller, an earth systems scientist at the University of California (UC), Irvine, who was not involved with this study.

Antarctica's vulnerability to climate change has also become increasingly clear, said Robin Bell of Columbia University's Lamont - Doherty Earth Observatory, who studies how ice sheets change.

«The Amazon rainforest is one of the tipping elements in the Earth system,» says lead - author Delphine Clara Zemp who conducted the study at the Potsdam Institute for Climate Impact Research, Germany.

In a recent study, Mathias Trachsel (Dept. of Biology, University of Bergen) and Atle Nesje (Dept. of Earth Science, University of Bergen and Uni Research Climate) used simple statistical models to assess and quantify the relative importance of summer temperature and winter precipitation for annual mass balances of eight Scandinavian glaciers.

«That is very exciting because a lot of interesting things happened with Earth's climate prior to 800,000 years ago that we currently can not study in the ice core record.»

It's an accusation that has often been lobbed at Keith's main area of study: geoengineering Earth's climate to counteract warming by, for instance, injecting particles into the sky to reflect sunlight.

«One of the key principles of geology is that the past is the key to the present: records of past climate inform us of how the Earth system functions,» says Michael Hren, assistant professor of chemistry and geosciences at the University of Connecticut and the study's lead author.

Scientists like Zeebe also study the PETM to better understand long - term changes in Earth's future climate.

«Prior analyses have found that climate models underestimate the observed rate of tropical widening, leading to questions on possible model deficiencies, possible errors in the observations, and lack of confidence in future projections,» said Robert J. Allen, an assistant professor of climatology in UC Riverside's Department of Earth Sciences, who led the study.

They dramatically accelerated the natural breakdown of exposed rocks, according to a new study, drawing so much planet - warming carbon dioxide (CO2) from the atmosphere that they sent Earth's climate spiraling into a major ice age.

One of these trips happened in 2014 while Lee and Rice colleagues also were studying how a flare - up of Cretaceous - era arc volcanoes along the U.S. Pacific rim had impacted Earth's climate through enhanced volcanic production of carbon dioxide.

«Studying the PETM helps us understand the mechanisms that aid recovery from global warming, thereby helping researchers reduce the uncertainties surrounding the Earth's response to global climate change,» Ridgwell said.

Scientists are interested in studying ancient warming events to understand how the Earth behaves when the climate system is dramatically perturbed.

Dust that blew into the North Pacific Ocean could help explain why the Earth's climate cooled 2.7 million years ago, according to a new study published in the journal Science Advances.

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.

Co-author of the study Professor Ian Hall, from the School of Earth and Ocean Sciences, said: «Our results highlight the challenge of basing our understanding of the climate system on generally short observational records.

The earlier study — which used pre-industrial temperature proxies to analyze historical climate patterns — ruled out, with more than 99 % certainty, the possibility that global warming in the industrial era is just a natural fluctuation in Earth's climate.

Muller launched his own climate study at the University of California, Berkeley — the Berkeley Earth Surface Temperature project — in order to better study temperature measurements, taking into account much of the concerns expressed by skeptics.

Paul Dirmeyer, a professor in the department of atmospheric, oceanic and earth sciences at George Mason University who was not involved in the study, notes: «Green et al. put forward an intriguing and exciting new idea, expanding our measures of land - atmospheric feedbacks from mainly a phenomenon of the water and energy cycles to include the biosphere, both as a response to climate forcing and a forcing to climate response.»

Studies of the sediment cores obtained during the expedition will focus on understanding how Earth's tectonic plates move and how the global climate system works.

A new Columbia Engineering study, led by Pierre Gentine, associate professor of earth and environmental engineering, analyzes global satellite observations and shows that vegetation alters climate and weather patterns by as much as 30 percent.

«For the first time we can quantify how oceans responded to slow, natural climate warming as the world emerged from the last ice age,» says Prof. Eric Galbraith from McGill University's Department of Earth and Oceanic Sciences, who led the study.

From a quarter to half of Earth's vegetated lands has shown significant greening over the last 35 years largely due to rising levels of atmospheric carbon dioxide, according to a new study published in the journal Nature Climate Change on April 25.

Using global climate models and NASA satellite observations of Earth's energy budget from the last 15 years, the study finds that a warming Earth is able to restore its temperature equilibrium through complex and seemingly paradoxical changes in the atmosphere and the way radiative heat is transported.

An analysis of temperature data since 1500 all but rules out the possibility that global warming in the industrial era is just a natural fluctuation in the earth's climate, according to a new study by McGill University physics professor Shaun Lovejoy.

The results of this study have been published in Scientific Reports and could provide important information for the chemistry of the atmosphere, evaluation of earth climate and in bioremediation.

Because scientists who've looked to glaciers to study the history of climate on Earth have found that the Northern and Southern hemispheres have not been moving in sync.

The sediment cores used in this study cover a period when the planet went through many climate cycles driven by variations in Earth's orbit, from extreme glacial periods such as the Last Glacial Maximum about 20,000 years ago, when massive ice sheets covered the northern parts of Europe and North America, to relatively warm interglacial periods with climates more like today's.

And for another, the previous studies estimate that Earth's climate will rapidly respond to the changes.

Of course, our study looks back in time and the future will be a very different place in terms of ice sheets and CO2 but it remains to be seen whether or not Earth's climate becomes more or less stable as we move forward from here.»

A team of UK scientists have studied how a circulation changes in the stratosphere (above 10 km) can influence both weather and climate conditions on the surface of Earth.

Professor Michael Benton from the University of Bristol, another co-author of the study, said: «This work illustrates a case of the impact of climate change on the evolution of animal biodiversity, and shows that for crocodilians, warming phases of our earth's history constitute ideal opportunities to colonise new environments.»

The work, published yesterday in Science, finds evidence that Earth's climate is more sensitive to the amount of carbon dioxide in the atmosphere than some earlier studies had suggested.

Analysis of three major bleaching events on Earth's best - studied reef highlights impact of climate change

«This is one of several recent studies that provide sobering evidence that earth's climate sensitivity may lie in the upper end of the current uncertainty range,» Mann said in an email.

Researchers use computer model outputs, such as this image from the Community Earth System Model, to study climate dynamics.

The team studied storm development from the Pliocene era, roughly three million years ago, and chose that time period because it was the last time the Earth had as much carbon dioxide as it does now, and the changes in climate from it can play a major role in storm formation and intensity.

«Most of the previous research of the past climate in this region is based on detailed studies of specific sites,» said the lead author Jessica Oster, assistant professor of earth and environmental sciences at Vanderbilt University.

Researchers from the United States and China are now studying the core — nearly as long as the Empire State Building is tall — to assemble one of the longest - ever records of Earth's climate history.