• Greenhouse gas concentrations in the atmosphere reach new record

    The amount of greenhouse gases in the atmosphere reached a new record high in 2011, according to the World Meteorological Organization (WMO); between 1990 and 2011 there was a 30 percent increase in radiative forcing — the warming effect on our climate — because of carbon dioxide (CO2) and other heat-trapping long-lived gases; a new WMO Greenhouse Gas Bulletin highlights pivotal role of carbon sinks

  • “Soft infrastructure” as storm surge defense alternatives

    The flooding in New York and New Jersey caused by Superstorm Sandy prompted calls from Governor Andrew Cuomo and other officials to consider building storm surge barriers to protect Lower Manhattan from future catastrophes. Such a strategy, however, could make things even worse for outlying areas that were hit hard by the hurricane, such as Staten Island, the New Jersey Shore, and Long Island’s South Shore, a City College of New York landscape architecture professor warns; landscapers and engineers say that environmentally friendly “soft infrastructure” would mitigate flood damage without sending harm elsewhere

  • The world’s 300 000 glaciers are melting, causing sea level to rise

    Anthropogenic climate change leads to melting glaciers and rising sea level; between 1902 and 2009, melting glaciers contributed eleven centimeters to sea level rise; they were therefore the most important cause of sea level rise; the scientists numerically modeled the changes of each of the world’s 300 000 glaciers

  • How groundwater pumping affects streamflow

    Groundwater provides drinking water for millions of Americans and is the primary source of water to irrigate cropland in many of the nations most productive agricultural settings; although the benefits of groundwater development are many, groundwater pumping can reduce the flow of water in connected streams and rivers — a process called streamflow depletion by wells; new USGS report describes processes and misconceptions concerning the effects of groundwater pumping on streamflow

  • Snowpack, essential freshwater source for billions, threatened

    Snowpack, an essential source of drinking water and agricultural irrigation for billions of people, could shrink significantly within the next thirty years; the news is particularly troubling for snowpack-dependent California — the largest producer of agriculture products in the country and the sixth-largest agriculture exporter in the world; by filling reservoirs and watering crops when warmer, drier weather sets in, mountain snowpack has become vital to people and ecosystems in regions such as the Western United States, Alpine Europe, Central Asia, and downstream of the Himalayas and Tibetan Plateau — home to more than 50 percent of the world’s population

  • Himalayan glaciers to shrink even if temperatures hold steady, risking South Asia water supply

    Come rain or shine, or even snow, some glaciers of the Himalayas will continue shrinking for many years to come; the most conservative findings of a new research on Bhutan, a region in the bull’s-eye of the monsoonal Himalayas, indicate that even if climate remained steady, almost 10 percent of Bhutan’s glaciers would vanish within the next few decades; what is more, the amount of melt water coming off these glaciers could drop by 30 percent

  • U.S. electric power grid “inherently vulnerable” to terrorist attacks: report

    The U.S. electric power delivery system is vulnerable to terrorist attacks which could cause much more damage to the system than natural disasters such as Hurricane Sandy, blacking out large regions of the country for weeks or months, and costing many billions of dollars, says a newly released report by the National Research Council

  • Con Ed overcame many obstacles to restore power to NYC

    On 29 October Hurricane Sandy slammed into New York City and took out the power in most of Lower Manhattan, even knocking out power to the headquarters of Consolidated Edison’s (Con Ed), the electricity supplier for NYC; due to the flooding in Lower Manhattan, employees had to use rafts to rescue coworkers trapped in the company’s East 13th Street power station; in the days after the storm, as with many other New Yorkers, Con Ed almost ran out of gas, but that did not stop the company from restoring power back to Lower Manhattan less than four days after the storm

  • Hurricane Sandy caused dramatic changes to hundreds of miles of East Coast shoreline

    The United States Geological Survey (USGS) has released a series of aerial photographs showing before-and-after images of Hurricane Sandy’s impacts on the Atlantic Coast; the photos, part of a USGS assessment of coastal change from as far south as the Outer Banks of North Carolina to as far north as Massachusetts, show that the storm caused dramatic changes to portions of shoreline extending hundreds of miles

  • Plants, soils could exacerbate climate change as global climate warms

    Scientists have demonstrated that plants and soils could release large amounts of carbon dioxide as global climate warms; this finding contrasts with the expectation that plants and soils will absorb carbon dioxide and is important because that additional carbon release from land surface could be a potent positive feedback that exacerbates climate warming

  • Sea-level records reveal tight correlation between ice volume and polar temperature

    During the last few million years, global ice-volume variability has been one of the main feedback mechanisms in climate change, because of the strong reflective properties of large ice sheets. Ice volume changes in ancient times can be reconstructed from sea-level records; a new study has revealed a rapid response between global temperature and ice volume/sea-level, which could lead to sea-levels rising by over one meter

  • In 2009, engineers predicted surge threats to N.Y.-N.J. and offered detailed mitigation measures

    The leaders of the U.S. top engineering association, reflecting on the destruction inflicted by Superstorm Sandy, say that more than three years ago the association presented studies showing that a devastating storm surge in the region was all but inevitable; participants in the 30-31 March 2009 American Society of Civil Engineers (ASCE) conference called on NYC officials seriously to consider whether to install surge barriers or tide gates in New York Harbor to protect the city

  • New book discusses storm surge protection for New York City

    A new book from American Society of Civil Engineers (ASCE), to be published on 3 December, includes sixteen papers exploring the development of storm surge barriers to protect New York City and nearby New Jersey from the effects of a future deluge

  • Increasing the efficiency of wireless networks

    A “spectrum crunch” is quickly being accelerated as customers convert from traditional cell phones to smartphones and tablets; new method, which doubles the efficiency of wireless networks, was developed by researchers; it could have broad impacts on the mobile Internet and wireless industries

  • “Groundwater inundation” doubles previous predictions of flooding with future sea level rise

    Scientists published a study today showing that besides marine inundation (flooding), low-lying coastal areas may also be vulnerable to “groundwater inundation,” a factor largely unrecognized in earlier predictions on the effects of sea level rise (SLR)