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Projected median temperature change in °F (of 112 climate projections) over the Western United States, 2070–2099 relative to 1950–1979. Specific projections include: Projected median percentage precipitation change (of 112 climate projections) over the Western United States, 2070–2099 relative to 1950–1979.
Earlier observations from satellites and balloons suggest that stratospheric water vapor probably increased between 1980 and 2000, which would have enhanced the decadal rate of surface warming during the 1990s by about 30% compared to estimates ignoring this change, according to the authors. —Solomon et al. —Solomon et al.
Scientists have taken a major step toward accurately determining the amount of energy that the sun provides to Earth, and how variations in that energy may contribute to climatechange. W m -2 established in the 1990s, which energy balance calculations and climate models currently use.
The Colorado River Basin encompasses much of the American West, covering parts of seven US states and two states in Mexico. It also comes on the heels of a major study of the Colorado River Basin by the US Department of Interior that projected longer and more severe droughts by 2060, and a 9% decline in the Colorado’s flows.
The study, led by scientists at the University of Colorado at Boulder (CU) and the National Center for Atmospheric Research (NCAR) in Boulder, Colo., finds that the sea-level rise is at least partly a result of climatechange. 2010) Patterns of Indian Ocean sea-level change in a warming climate. Credit: NASA.
The ongoing severe drought in the Colorado River Basin has led to the river flowing at 84% of its historic average flow. The new study used tree-ring data and other climate records to identify a drought period unmatched in severity by the current drought or other ancient droughts. Gangopadhyay, S., Woodhouse, C. McCabe, G. Routson, C.
A recent increase in the abundance of particles high in the atmosphere has offset about a third of the current climate warming influence of CO 2 change during the past decade, according to a new study led by NOAA and published in the online edition of Science. —John Daniel.
Colorado River Basin including major dams. All reservoirs along the Colorado River might dry up by mid-century as the West warms, according to a new study led by researchers at the University of Colorado, Boulder. Roughly 30 million people now depend on the Colorado River for drinking and irrigation water. Source: AGU.
Although most countries have already revealed their opening emissions reduction proposals, UNFCCC Executive Secretary Yvo de Boer pointed out Thursday that “ we still await clarity from industrialized nations on the provision of large-scale finance to developing countries for immediate and long-term climate action. by Jack Rosebro.
A study published earlier this year in the journal Nature ClimateChange that cast doubt on whether biofuels produced from corn residue could meet federal mandates for cellulosic biofuels to reduce greenhouse gas emissions by 60% compared to gasoline ( earlier post ) has drawn critical response published as correspondence in the same journal.
Before this study, we didn’t know how fast that carbon could potentially be released from permafrost, and how this feedback to climate would change over time. An understanding of the rate of carbon release is necessary to estimate the strength of positive feedback to climatechange, a likely consequence of permafrost thaw.
An analysis of sediment cores from an Arctic lake indicates that biological and chemical changes occurring there are unprecedented over the past 200,000 years and likely are the result of human-caused climatechange, according to a new study led by the University of Colorado at Boulder. PNAS doi: 10.1073/pnas.0907094106.
The order, supported by local and federal funds, helps RTD meet sustainability goals outlined in the ColoradoClimate Action Plan to mitigate climatechange impact through elimination of statewide greenhouse gas emissions by 26% by 2025, 50% by 2030, and 90% by 2050.
The companies deployed and demonstrated a 150 kW fuel cell system near the 17 th Conference of the Parties (COP17) to the United Nations Framework Convention on ClimateChange held in Durban, South Africa in late-2011. COP17 was a high-level summit on climatechange.
Incorporating geologic records, biologic records and computer simulations, the study reconstructed Arctic summer temperatures at a resolution down to decades, and thereby extended the climate record a full 1,600 years beyond the 400 year-long record that was previously available at that resolution. Kaufman, et al.
The RCPs were chosen to represent a broad range of climate outcomes, based on a literature review. Warmer temperatures and other changes in the atmosphere related to a changingclimate, including higher atmospheric levels of methane, spur the chemical reactions that lead to ozone. The RCP 8.5
Methane and black carbon (soot) are the second- and third-most powerful climate-warming agents after carbon dioxide. Shindell, professor of climate science at Duke University’s Nicholas School of the Environment, co-authored the paper with colleagues from the Institute for Governance & Sustainable Development in Washington, D.C.;
The projects span the globe and the unexplored branches of the tree of life, and promise to yield a better understanding of the interplay between climate, ecosystem and organism. Mediterranean Grassland Soil Metagenome (MGSM): Enabling a systems view of soil carbon and nitrogen biogeochemistry under a changingclimate.
In their commentary, Andreas Goldthau (Royal Holloway University of London), Kirsten Westphal (German Institute for International and Security Affairs (SWP)), Morgan Bazilian (Colorado School of Mines) & Michael Bradshaw (University of Warwick) present four geopolitical scenarios to illustrate how varied the transition could be by 2030.
From Denver smog to jammed mountain highways, Colorado is focusing on transportation to solve congestion, pollution, and climate problems. The first in a series of stories based on RMI analysis of how key US states are deploying real climate solutions. See more at State Climate Scorecards.
This is part of a series on wildfires, heat waves, and power outages in Colorado that walks through the role of climatechange, how to stay safe, and what policymakers can do. Read more about Colorado Heat Waves here and Power Outages in Colorado here. Originally published on NRDC Expert Blog.
Factors such as size, population density, available fuels, types of businesses, climate, all play a role in both total and per capita emissions, the EIA noted. million tonnes), while Colorado experienced the greatest absolute increase (11.8 ClimateChange Emissions' million tonnes CO 2 ); California (369.8
Using computer-generated models as well as observations, the team analyzed causes for climate variations in the recent decades. The research is an exercise in climate attribution, a scientific process for identifying the sources of observed climate and weather patterns. —Martin Hoerling, a NOAA meteorologist and co-author.
Twenty homes scattered across Canada and the northern United States are keeping warm this winter using prototypes of the latest iteration in residential heating systems: cold climate heat pumps. To prove it, eight manufacturers are publicly testing their prototypes in the Cold-Climate Heat Pump Technology Challenge , hosted by the U.S.
Ioneer’s ongoing conservation efforts for Tiehm’s buckwheat are aimed at addressing current and future threats to the species, including climate-related threats. (A Climatechange could impact the frequency and severity of future herbivory events because future conditions will likely be warmer and drier.). Carrell et al.
Canada’s Minister of Environment and ClimateChange, Catherine McKenna, and the Chair of the California Air Resources Board, Mary Nichols, today signed a new cooperation agreement to advance cleaner vehicles and fuels. Combined, these states and California constitute more than 40% of the US passenger vehicle market.
US and Swiss researchers have modeled two climate scenarios with very high carbon emissions—above the A1F1 scenario, currently representing the upper bound of predicted carbon emissions in the IPCC work—to investigate the resulting climatechange implications. —Sanderson et al. —Sanderson et al.
PRIME Coalition, a 501(c)(3) public charity funding tech start-ups that fight climatechange, closed three new investments: Opus 12 in Berkeley, CA; Mallinda in Denver, CO; and Lilac Solutions in Oakland, CA. In addition, the prepreg is pre-cured, shelf-stable, and requires no refrigeration for transport and storage.
The change in runoff inferred from streamflow records worldwide between 1948 and 2004, with bluish colors indicating more streamflow and reddish colors less. Graphic courtesy Journal of Climate, modified by UCAR.) The results will be published 15 May in the American Meteorological Society’s Journal of Climate. Click to enlarge.
This kind of climate condition typically brings wetter-than-normal conditions in some tropical regions and cooler sea surface temperatures in the central and eastern tropical Pacific Ocean. White of the Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colo.; It can persist for as long as two years.
The largest global oil shale deposits—estimated to be equivalent to 1,500 Gbbl oil equivalent—are found in the Green River formation of Colorado, Utah, and Wyoming. To put these figures in perspective, emissions from all sectors in the state of Colorado equaled 24 million t of carbon in 2001.
University of Colorado Boulder researchers have developed nanobio-hybrid organisms capable of using airborne carbon dioxide and nitrogen to produce a variety of plastics and fuels, a promising first step toward low-cost carbon sequestration and eco-friendly manufacturing for chemicals. —Ding et al.
Co-author Steven Davis, UCI associate professor of Earth system science, noted that earlier studies on the impact of climate warming and ambient ozone on the state’s ability to grow food have focused on high-volume staple crops such as wheat, soy and rice. Mueller, N.D., Burney, J.A.
On the road from NorCal to Colorado, there is a lot of nature one can experience, from national parks, to lakes, to breathtaking mountain towns. Features such as a hot-water shower and interior climate controls provide comfort. Being able to have a place to nap, prepare food, store gear, and hang out would have made a huge difference.
Most climate models have suggested that evapotranspiration, which is the movement of water from the land to the atmosphere, would increase with global warming because of increased evaporation of water from the ocean and more precipitation overall. —Beverly Law, a professor of global change forest science at Oregon State University.
Today, we interviewed BMW's electric-car powertrain head, looked at tire swaps for Chevy Bolt EVs, covered some state news on emission limits and charging stations, and offered a PSA on climatechange. All this and more on Green Car Reports. Low-rolling-resistance tires boost electric-car range, but don't do much for handling.
The new data suggests we have overestimated flaring’s effectiveness and, as a result, underestimated its contribution to methane emissions and climatechange. Burning methane by flaring as it is released converts it to carbon dioxide, another greenhouse gas but one that is less harmful on a pound-by-pound basis.
That’s why we are always encouraged to learn about and partner with other companies that are identifying innovative ways to fight the growing climate crisis. Today, we’re excited to share our new partnership with Arcadia , a tech company working to stop climatechange by breaking the fossil fuel monopoly. .
Barnett and Pierce used what they consider conservative metrics, assuming that the effects of climatechange on the Colorado Basin began in 2007, and using only the last 100 years of riverflow. We were stunned at the magnitude of the problem and how fast it was coming at us ,” said Barnett.
Scientists from the Karlsruhe Institute of Technology (Germany), University of Colorado Boulder, and Universidad Nacional Autónoma de México performed a “CT Scan” of the atmosphere, moving along latitudes and longitudes, measuring particle concentrations and compositions in the upper troposphere. —Mingyi Wang. —Neil Donahue.
Northern India, probably the most heavily irrigated region in the world, is rapidly depleting its groundwater, according to a new study by researchers from the National Geophysical Research Institute, Hyderabad (CSIR), India; the University of Colorado, Boulder; and the US National Center for Atmospheric Research.
Despite a slight recovery in summer Arctic sea ice in 2009 from record-setting low years in 2007 and 2008, the sea ice extent remains significantly below previous years and remains on a trend leading toward ice-free Arctic summers, according to the University of Colorado at Boulder’s National Snow and Ice Data Center. Earlier post.).
An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. Timothy Hillman, University of Colorado.
Climatechange mitigation will create new natural resource and supply chain opportunities and dilemmas, because substantial amounts of raw materials will be required to build new low-carbon energy devices and infrastructure. Their paper is published in Science.
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