Offshore wind turbines offer huge potential as a renewable energy source in today’s world, but the number of offshore wind farms is surprisingly small. Here, three scientists look at the wind resources off the southeast coast of Brazil as a possible sight that could one day provide Brazil with clean, carbon-free electricity.
As the international remote sensing community readies the 2009 IGARSS in Cape Town, South Africa this July, Earthzine recalls last summer’s conference in Boston, Massachusetts with this Featured Person interview with Dr. Barrett N. “Barry” Rock, professor of forestry, botany and remote sensing in the Complex Systems Research Center and the Department of Natural Resources at the University of New Hampshire. Barry Rock exemplifies IEEE’s mission to put science and technology to work for the benefit of humanity and Earth. He has “grown” a network of hundreds of students and teachers in Forest Watch, the outreach program he founded in 1991 in order to scientifically track the effects of U.S. efforts to diminish the damage of air pollution on human health and vegetation. In Boston, he demonstrated the Forest Watch model of university/K-12 partnership and IEEE scientific/community outreach at the 2008 IEEE International Geosciences and Remote Sensing Symposium.
In their submission to Earthzine’s 2009 Student Essay Competition, Sulaiman Tejan Jalloh of Sierra Leone’s Institute of Advanced Management and Technology discusses the negative environmental effects of traditional slash-and-burn agriculture and presents alternatives aim to reduce human’s impact on the environment.
Victor Sunday and Onyemachi Praise K. C. from Nigeria’s University of Port Harcourt present an essay for Earthzine’s 2009 Student Essay Contest in which they explain the detrimental effects of erosion in southeast Nigeria, and how environmental monitoring, mapping and protection of erosion sites in the zone has risen awareness and helped prevent future problems.
This study attempts to derive Digital Elevation Models (DEMs) for gullies at Ode-Irele, Lipanu, Akotogbo and Ajagba town in Irele Local Government Area (LGA) of Ondo-State, Nigeria. Gully morphometric attributes such as surface slope, catchments area, average depth and width as well as cross-sectional area and volume of material/ soil excavated were determined.
Under warm, sunny skies along Monterey Bay in California last May, marine scientists and engineers met with leading legislators and policy makers to confront some cold, hard, disturbing facts: Greenhouse gas emissions and other human-induced impacts are threatening the health of marine life, and coordinated action between policy makers and scientists is needed now to address this enormous problem.
Accurate prediction of sea level is arguably one of the most important societal goals facing the research community. Combining cutting-edge technologies with sustained observations to understand processes and improve numerical models will be required to address the issue of future ice-sheet changes and impacts on global sea level.