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Global Warming News -- ScienceDaily
Global Warming Research. Learn about the causes and effects of global warming. Consider possible global warming solutions. Read predictions of rising sea levels, coral reef bleaching and mass extinctions climate change may cause.

Global Warming News -- ScienceDaily
  • Karakoram glacier anomaly resolved, a cold case of climate science
    Researchers may have hit upon an answer to a climate-change puzzle that has eluded scientists for years, namely why glaciers in the Karakoram range of the Himalayas have remained stable and even increased in mass while glaciers nearby and worldwide have been receding. Understanding the 'Karakoram anomaly' could help gauge the future availability of water for hundreds of millions of people.

  • Global consumption an increasingly significant driver of tropical deforestation
    International trade with agricultural and wood products is an increasingly important driver of tropical deforestation. More than a third of recent deforestation can be tied to production of beef, soy, palm oil and timber. 'The trend is clear: the drivers of deforestation have been globalized and commercialized,' says one expert.

  • 'Shrinking goats' another indicator that climate change affects animal size
    Alpine goats appear to be shrinking in size as they react to changes in climate, according to new research. In recent years, decreases in body size have been identified in a variety of animal species, and have frequently been linked to the changing climate. However, the researchers say the decline in size of Chamois observed in this study is striking in its speed and magnitude.

  • Ocean's living carbon pumps: When viruses attack giant algal blooms, global carbon cycles are affected
    By some estimates, almost half of the world's organic carbon is fixed by marine organisms called phytoplankton -- single-celled photosynthetic organisms that account for less than one percent of the total photosynthetic biomass on Earth. When giant algal blooms get viral infections, global carbon cycles are affected, scientists have now discovered.

  • In between red light and blue light: New functionality of molecular light switches
    Diatoms play an important role in water quality and in the global climate. They generate about one fourth of the oxygen in the Earth?s atmosphere and perform around one-quarter of the global carbon dioxide assimilation, i.e. they convert carbon dioxide into organic substances. Their light receptors are a crucial factor in this process. Researchers have now discovered that blue and red light sensing photoreceptors control the carbon flow in these algae.

  • Improved electricity access has little impact on climate change
    Expanding access to household electricity services accounts for only a small portion of total emission growth, shows a new study, shedding light on an ongoing debate on potential conflicts between climate and development.

  • Climate change alters cast of winter birds
    Over the past two decades, the resident communities of birds that attend eastern North America?s backyard bird feeders in winter have quietly been remade, most likely as a result of a warming climate.

  • NASA begins sixth year of airborne Antarctic ice change study
    NASA is carrying out its sixth consecutive year of Operation IceBridge research flights over Antarctica to study changes in the continent's ice sheet, glaciers and sea ice. This year's airborne campaign, which began its first flight Thursday morning, will revisit a section of the Antarctic ice sheet that recently was found to be in irreversible decline.

  • Microfossils reveal warm oceans had less oxygen
    Researchers are pairing chemical analyses with micropaleontology -- the study of tiny fossilized organisms -- to better understand how global marine life was affected by a rapid warming event more than 55 million years ago. Their findings are the subject of an article in the journal Paleoceanography.

  • Canary for climate change: How past extinctions have influenced modern distribution, population size of existing species
    Wing-propelled diving seabirds, as well as their extinct relatives, may have served as an indicator species for environmental changes and faunal shifts, researchers suggest. The findings also elucidate how past extinctions have influenced the modern distribution and population size of existing species.

  • Weather history 'time machine' created
    A software program that allows climate researchers to access historical climate data for the entire global surface (excluding the poles) has been developed. This software include the oceans, and is based statistical research into historical climates.

  • Global natural gas boom alone won't slow climate change
    A new analysis of global energy use, economics and the climate shows that expanding the current bounty of inexpensive natural gas alone would not slow the growth of global greenhouse gas emissions worldwide. Recent advances in gas production technology based on horizontal drilling and hydraulic fracturing -- also known as fracking -- have led to bountiful, low-cost natural gas. Because gas emits far less carbon dioxide than coal, some researchers have linked the natural gas boom to recent reductions in greenhouse gas emissions in the United States. But could these advanced technologies also have an impact on emissions beyond North America and decades into the future?

  • Climate change not responsible for altering forest tree composition, experts say
    Change in disturbance regimes -- rather than a change in climate -- is largely responsible for altering the composition of Eastern forests, according to a researcher. Forests in the Eastern United States remain in a state of "disequilibrium" stemming from the clear-cutting and large-scale burning that occurred in the late 1800s and early 1900s, he contends.

  • Carbonate rocks are unrecognized methane sink
    Since the first undersea methane seep was discovered 30 years ago, scientists have meticulously analyzed and measured how microbes in the seafloor sediments consume the greenhouse gas methane. They have now found a type of rock known as authigenic carbonate also contains vast amounts of active microbes that take up methane. This demonstrates that the global methane process is still poorly understood.

  • Importance of dead jellyfish to deep-sea ecosystems
    Dead jellyfish contribute to the deep-sea food chain, unlike previously thought, innovative experiments show. Researchers deployed lander systems to look at how scavengers responded to jellyfish and fish baits in the deep sea off Norway. The experiments were carried out in areas with jellyfish blooms near the ocean surface and showed that when the creatures fell to the seabed they were rapidly eaten by scavengers.


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