Category Archives: Food & Water Issues

PLEA Network

22 June 2015, The Conversation, Climate: the elephant in the room for developing northern Australia: The recently released white paper on developing northern Australia ignores an elephant in the room: climate change. While the paper sees a bright future for the north (roads, rail, dams and food), without considering climate change we can’t be sure the north will even be liveable. The white paper also fails to take into account other environmental constraints such as water and soils….. The white paper has not referenced high-quality expert advice prepared by the Northern Australian Land and Water Task Force…. The white paper ignores reference to sophisticated climate change projections for northern Australia developed by our own CSIRO and Bureau of Meteorology. Climate projections for the north this century paint a dire future and bring into question the feasibility and affordability of many of the development policies, plans and projects outlined in the white paper. Read More here

 

PLEA Network

9 June 2015, Science Daily, Land management practices to become important as biofuels use grows: The handling of agricultural crop residues appears to have a large impact on soil’s ability to retain carbon, making land management practices increasingly important, especially under a scenario where cellulosic materials become more heavily used as a feedstock for ethanol production, according to a recently published study led by researchers at the U.S. Department of Energy’s Argonne National Laboratory. “Plants and soil are carbon sinks,” said Argonne climate scientist Beth Drewniak, who led the study. “Soils lock carbon away for long periods of time. But when plant residues are harvested, not only are inputs of carbon and other nutrients to soil lost, but decomposition is accelerated, causing soils to lose additional carbon.” Read More here

PLEA Network

2 June 2015, Climate News Network, Glacier loss raises high concern over water supplies: The glaciers of the Everest region of the Himalayan massif—home to the highest peak of all—could lose between 70% and 99% of their volume as a result of global warming. Asia’s mountain ranges contain the greatest thickness of ice beyond the polar regions. But new research predicts that, by 2100, the world’s highest waters—on which billions of people depend for their water supply—could be at their lowest ebb because of the ice loss. Many of the continent’s great rivers begin up in the snows, fed by melting ice in high-peak regions such as the Hindu Kush, the Pamir and the Himalayas. Joseph Shea, a glacial hydrologist at the International Centre for Integrated Mountain Development in Kathmandu, Nepal, and French and Dutch colleagues report in The Cryosphere journal that they used more than 50 years of climate data and sophisticated computer models of predicted climate change to study the pattern of snowpack and seasonal melt in the Everest region. Read More here

PLEA Network

1 June 2015, The Diplomat, The world water crisis is both severe and entirely avoidable: With the approach of World Environment Day, on June 5, it is worthwhile to reflect on a major crisis that is now confronting the world but receiving inadequate attention. If current trends continue, the world will face a water crisis that will be unprecedented in human history. During the past decade, there has been extensive discussion on the adequacy of physical availability of water to meet escalating needs for various uses for an expanding global population and accelerating economic activities. However, inadequate attention has been paid to the rapid deterioration of water quality, which is further reducing a significant stock of water that can no longer be used without expensive and sophisticated treatment. Water, unlike oil or minerals, is a renewable resource. This means it can be used, treated properly, and then reused. This cycle with good management can continue indefinitely. It has been estimated that each drop of the Colorado River water is used seven times. With good management, there is no reason why this could not be increased to 20 or 30 times. The current overwhelming concern is that the world is going to run out of physical availability of water in the foreseeable future. We differ. Read More here