Sentences with phrase «atmospheric chemist at»

No way,» says Paul Wennberg, an atmospheric chemist at the California Institute of Technology.

«We are very confident that livestock emissions were being underestimated,» said lead study author Kevin Wecht, an atmospheric chemist at Harvard University in Massachusetts.

«Growing quantities of DCM are leaking into the stratosphere, where it is exceptionally effective in destroying the ozone,» said David Rowley, an atmospheric chemist at the University College London, who was not involved in the research.

Ryan Hossaini, an atmospheric chemist at Lancaster University, recently did the math.

The good news is that without the Montreal Protocol things would have been a great deal worse, said Martyn Chipperfield, an atmospheric chemist at the University of Leeds.

Insert, 10:08 p.m. Paul Shepson, the study's lead author and an atmospheric chemist at Purdue, said Derry's concern that the team was measuring coalbed methane coming from somewhere other than the gas wells was unfounded.

Soot was the impact's most lethal symptom, argued paleontologist Kunio Kaiho, of Tohoku University, and Naga Oshima, an atmospheric chemist at Japan's Meteorological Research Institute.

But some space scientists have long made use of arXiv, and a subset of the earth scientists who published in the journals of the European Geosciences Union (EGU) have already become accustomed to such openness, as EGU has posted studies online prior to review for more than 15 years, says Ulrich Pöschl, an atmospheric chemist at the Max Planck Institute for Chemistry in Mainz, Germany, who helped found the journals.

The finding could have broad impacts on our understanding of how the stratosphere works, says James Anderson, an atmospheric chemist at Harvard University.

Meredith Hastings, an atmospheric chemist at Brown University and co-principal investigator on a $ 1.1 million National Science Foundation grant aimed at curbing sexual harassment in the geosciences, says she is «excited that [Boston] University is stepping forward and taking some type of action — that they were able to come to the conclusion that he has harassed her.»

The production of the gas is nearly doubling every year, says Michael Prather, atmospheric chemist at University of California, Irvine, who had predicted earlier this year that emissions would likely exceed the industry's claim that only 2 percent of the gas is released into the atmosphere.

«First Best Guess» Wiedinmyer pored through existing data and inventories and consulted one of the few people already investigating the phenomenon, Bob Yokelson, an atmospheric chemist at the University of Montana in Missoula, who had traveled widely to developing areas and was familiar with the trash burning around homes and villages.

«This winter has been stunning,» says Markus Rex, an atmospheric chemist at the Alfred Wegener Institute in Potsdam, Germany.

Robert Watson, an atmospheric chemist at the University of East Anglia in the United Kindgdom, is being honored for his studies of the ozone hole and work toward an international agreement to ban the use of the chemicals causing ozone depletion; he later chaired the Intergovernmental Panel on Climate Change.

But Ed Dlugokencky, an atmospheric chemist at the National Oceanic and Atmospheric Administration's Earth System Research Laboratory in Boulder, Colorado, sees another potential source: the heavy rains that washed over the tropics from 2008 to 2014, creating a surge in wetlands and methane - spewing microbes.

This paper «is timely and an important step forward in understanding changes in the global methane budget,» says Isobel Simpson, an atmospheric chemist at the University of California, Irvine, who was not involved in the study.

«It's a big surprise,» says Susan Solomon, an atmospheric chemist at the Massachusetts Institute of Technology in Cambridge.

Part of the challenge with many these volatile - emitting products is that they're specifically designed to evaporate as part of their job, says study coauthor Jessica Gilman, an atmospheric chemist at the National Oceanic and Atmospheric Administration in Boulder.

Natural sources of this substance are small, says Ryan Hossaini, an atmospheric chemist at Lancaster University in the United Kingdom.

Co-authored by David Catling, an atmospheric chemist at the University of Washington in Seattle, the study peers deep into our planet's history to devise a novel recipe for finding single - celled life on faraway worlds in the not - too - distant future.

Jim Kasting, an atmospheric chemist at The Pennsylvania State University unaffiliated with the study says its results are «on the right track,» even though «the idea that methane might be a biosignature in an anoxic atmosphere is not exactly new.»

Not exact matches

Although chlorine levels are falling, thanks to agreements that banned chlorofluorocarbons, levels of bromine — which is 45 times more effective at zapping ozone — are still rising, says atmospheric chemist Dale Hurst of the National Oceanic and Atmospheric Administration in Boulder, Colorado.

But James Ferris, a prebiotic chemist at Rensselaer Polytechnic Institute in Troy, N.Y., doubts that atmospheric electricity could have been the only source of organic molecules.

«OH tends to get ignored a bit in discussions even in the science community,» says Michael Newland, an atmospheric chemist who recently completed a postdoc at the University of East Anglia in Norwich, U.K.

The inset map is a computer model of Asian mercury emissions across the Pacific Ocean at an altitude of 20,000 feet in April 2004, while atmospheric chemist Dan Jaffe was picking up significant mercury readings on Mount Bachelor (the highest concentrations are in red).

Detlev Helmig, an atmospheric chemist and group leader at the Institute of Arctic and Alpine Research laboratory at the University of Colorado, Boulder, has spent 10 years studying the strange ups and downs of gases in the atmosphere.

At a symposium in Germany last week, atmospheric chemists debated for the first time whether aircraft should be banned from the stratosphere in order to protect the ozone layer.

An international team led by atmospheric chemist Qiang Zhang of Tsinghua University in Beijing looked at emissions data across 13 global regions for 2007, the last year comprehensive information was available.

«The hope is that we can buy time by reducing short - lived climate forcers,» said Patricia Quinn, an atmospheric chemist researching these pollutants at the National Oceanographic and Atmospheric Administration (NOAA).

... This brings up the nightmarish thought that if the chemical industry had developed organobromine compounds instead of the CFCs — or alternatively, if chlorine chemistry would have run more like that of bromine — then without any preparedness, we would have been faced with a catastrophic ozone hole everywhere and at all seasons during the 1970s, probably before the atmospheric chemists had developed the necessary knowledge to identify the problem and the appropriate techniques for the necessary critical measurements.

In 1896 Swedish chemist and Nobel laureate Svante Arrhenius used Langley's bolometer to measure the heat from the Moon at various altitudes above the horizon in order to estimate the dependence of atmospheric heat trapping on amount of water vapor and CO2 along the line of sight to the Moon, a much longer path near the horizon than at 45 degrees.

``... the nightmarish thought that if the chemical industry had developed organobromine compounds instead of the CFCs — or alternatively, if chlorine chemistry would have run more like that of bromine — then without any preparedness, we would have been faced with a catastrophic ozone hole everywhere and at all seasons during the 1970s, probably before the atmospheric chemists had developed the necessary knowledge to identify the problem and the appropriate techniques for the necessary critical measurements.