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Kevin Makice

Communicating uncertain climate risks - 0 views

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    The authors of a recent Perspectives piece in the journal Nature Climate Science say it is not enough to intuit the success of climate communications. They contend the evaluation of climate communication should be met with the same rigor as climate science itself. Here, someone uses the 220 megapixel HiPerWall display at the University of California, San Diego to discuss 10 time varying Intergovernmental Panel on Climate Change simulation runs.
Kevin Makice

Study finds a better way to gauge the climate costs of land use changes - 0 views

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    Those making land use decisions to reduce the harmful effects of climate change have focused almost exclusively on greenhouse gases - analyzing, for example, how much carbon dioxide is released when a forest is cleared to grow crops. A new study in Nature Climate Change aims to present a more complete picture - to incorporate other characteristics of ecosystems that also influence climate.
Kevin Makice

'Gravity is climate' - 10 years of climate research satellites GRACE - 0 views

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    For the first time, the melting of glaciers in Greenland could now be measured with high accuracy from space. Just in time for the tenth anniversary of the twin satellites GRACE (Gravity Recovery and Climate Experiment) a sharp image has surface, which also renders the spatial distribution of the glacial melt more precisely. The Greenland ice shield had to cope with up to 240 gigatons of mass loss between 2002 and 2011. This corresponds to a sea level rise of about 0.7 mm per year. These statements were made possible by the high-precision measurements of the GRACE mission, whose data records result in a hitherto unequaled accurate picture of the earth's gravity. One of Newton's laws states that the gravity of an object depends directly on its mass. "When the mass of the Greenland ice sheet changes, so does the gravity there," explains Dr. Frank Flechtner from the GFZ German Research Centre for Geosciences. "The GRACE gravity field measurements therefore give us information on mass changes, including climate-related ones."
Kevin Makice

British butterfly is evolving to respond to climate change - 0 views

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    As global temperatures rise and climatic zones move polewards, species will need to find different environments to prevent extinction. New research, published today in the journal Molecular Ecology, has revealed that climate change is causing certain species to move and adapt to a range of new habitats.
Kevin Makice

Tree-ring data show history, pattern to droughts - 0 views

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    "Dendrochronologists have shown that tree-ring data produce a remarkably accurate history of droughts and other climate changes. Combined with reliable drought indices and historical descriptions of climate conditions, dendrochronology - the technique of dating events and environmental change by relying on characteristic patterns of tree-ring growth - can provide a climate perspective on important events such as large-scale human migration and even the rise and fall of entire civilizations."
Kevin Makice

Global climate prediction system models tested - 0 views

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    "A new study has found that climate-prediction models are good at predicting long-term climate patterns on a global scale but lose their edge when applied to time frames shorter than three decades and on sub-continental scales."
Kevin Makice

Climate-smart agriculture should be livelihood-smart too - 0 views

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    Encouraging climate-smart agriculture can lead to climate change adaptation practices in a partnership where the farmer's needs are addressed.
Kevin Makice

Climate change: South Africa has much to lose - 0 views

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    Climate change could mean unthinkable loss for South Africa, which hosts talks on global warming that will bring government negotiators, scientists and lobbyists from around the world to the coastal city of Durban next week. Guy Midgley, the top climate change researcher at the South African National Biodiversity Institute, said evidence gleaned from decades of recording weather data, observing flora and fauna and conducting experiments makes it possible for scientists to "weave a tapestry of change."
Kevin Makice

Dramatic links found between climate change, elk, plants, and birds - 0 views

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    Climate change in the form of reduced snowfall in mountains is causing powerful and cascading shifts in mountainous plant and bird communities through the increased ability of elk to stay at high elevations over winter and consume plants, according to a groundbreaking study in Nature Climate Change.
Kevin Makice

Largest bird alters its foraging due to climate change - 0 views

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    Wandering albatrosses have altered their foraging due to changes in wind fields in the southern hemisphere during the last decades. Since winds have increased in intensity and moved to the south, the flight speed of albatrosses increased and they spend less time foraging. As a consequence, breeding success has improved and birds have gained 1 kilogram. These are the results of the study of an international research team published in the latest issue of the Science journal. However, these positive consequences of climate change may last short if future wind fields follow predictions of climate change scenarios, researchers warn.
Kevin Makice

Climate change models may underestimate extinctions - 0 views

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    Predictions of the loss of animal and plant diversity around the world are common under models of future climate change. But a new study shows that because these climate models don't account for species competition and movement, they could grossly underestimate future extinctions.
Kevin Makice

Humans and climate contributed to extinctions of large ice-age mammals, study finds - 0 views

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    Both climate change and humans were responsible for the extinction of some large mammals, like the musk ox in this photo, according to research that is the first of its kind to use genetic, archeological, and climatic data together to infer the population history of large Ice-Age mammals. The large international team's research, which will be published in the journal Nature, is expected to shed light on the possible fates of living species of mammals as our planet continues its current warming cycle.
Kevin Makice

Climate scientists compute in concert - 0 views

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    Researchers at Oak Ridge National Laboratory (ORNL) are sharing computational resources and expertise to improve the detail and performance of a scientific application code that is the product of one of the world's largest collaborations of climate researchers. The Community Earth System Model (CESM) is a mega-model that couples components of atmosphere, land, ocean, and ice to reflect their complex interactions. By continuing to improve science representations and numerical methods in simulations, and exploiting modern computer architectures, researchers expect to further improve the CESM's accuracy in predicting climate changes. Achieving that goal requires teamwork and coordination rarely seen outside a symphony orchestra.
Kevin Makice

Cutting carbon dioxide helps prevent drying - 0 views

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    Recent climate modeling has shown that reducing the concentration of carbon dioxide in the atmosphere would give the Earth a wetter climate in the short term. New research from Carnegie Global Ecology scientists Long Cao and Ken Caldeira offers a novel explanation for why climates are wetter when atmospheric carbon dioxide (CO2) concentrations are decreasing. Their findings, published online today by Geophysical Research Letters, show that cutting carbon dioxide concentrations could help prevent droughts caused by global warming.
Kevin Makice

New report on climate change and cities a 'wake-up call' for global policymakers - 0 views

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    More than half the world's population live in cities, many of which are increasingly vulnerable to the impacts of climate change. But cities are also emerging as the innovative "first responders" in dealing with climate change, says a major new report led by researchers at Columbia University and the City University of New York (CUNY) and published by Cambridge University Press.
Kevin Makice

Slowing climate change by targeting gases other than carbon dioxide - 0 views

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    Carbon dioxide remains the undisputed king of recent climate change, but other greenhouse gases measurably contribute to the problem. A new study, conducted by NOAA scientists and published online today in Nature, shows that cutting emissions of those other gases could slow changes in climate that are expected in the future.
Kevin Makice

Aerosols affect climate more than satellite estimates predict - 0 views

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    Aerosol particles, including soot and sulfur dioxide from burning fossil fuels, essentially mask the effects of greenhouse gases and are at the heart of the biggest uncertainty in climate change prediction. New research from the University of Michigan shows that satellite-based projections of aerosols' effect on Earth's climate significantly underestimate their impacts.
Kevin Makice

Russian boreal forests undergoing vegetation change, study shows - 0 views

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    The largest continuous expanse of forest in the world, found in the country's cold northern regions - is undergoing an accelerating large-scale shift in vegetation types as a result of globally and regionally warming climate. That in turn is creating an even warmer climate in the region, according to a new study published in the journal Global Change Biology and highlighted in the April issue of Nature Climate Change.
Kevin Makice

Moving climate change regulation forward - 0 views

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    Signing a legally binding treaty that would force emissions reductions throughout the world is not likely in the near future, according to U.S. State Department Special Envoy for Climate Change Todd Stern, who visited MIT last week. But that shouldn't stop the United States from moving forward in addressing climate change issues, he said.
Kevin Makice

Climate change study warns 1 in 10 species could face extinction by 2100 - 0 views

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    One in 10 species could face extinction by the year 2100 if current climate change impacts continue. This is the result of University of Exeter research, examining studies on the effects of recent climate change on plant and animal species and comparing this with predictions of future declines.
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