World Population Hitting 7 Billion

Planet Earth will host 7 billion humans by the end of October 2011. Although that’s a daunting number, the rate of increase is slowing from its high point of over 2% in 1968. Still, this year’s 1.1% increase means some 78 million people will be added to the global population in 2011. The human population reached 1 billion in the early 19th century, and it took more than 100 years to reach 2 billion. After that, the intervals between billions grew even shorter: we added the third billion in 33 years, the fourth in 14 years, the fifth in 13 years, and the sixth and seventh in 12 years each. Anyone alive today who was born by 1940 has seen our numbers triple. The most widely cited United Nations projection shows world population hitting 8 billion in 2025 and 10 billion before the end of this century. With populations stabilizing in much of the industrial world, almost all population growth in the near future is expected to occur in developing countries. Of the 2.3 billion people to be added by 2050, more than a billion will live in sub-Saharan Africa. The Indian subcontinent will add some 630 million people. Global […]

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Clean Energy Roundup: 10/28/11

$60M for Concentrating Solar Research Financing Solar PV for Schools Japan Wins World Solar Challenge We Have to Replace the Whole Barrel National Lab Partnerships Brings Cutting-Edge Technology to Market $60 Million for Concentrating Solar DOE is investing $60 million over three years for applied scientific research to advance cutting-edge concentrating solar power (CSP) technologies. The effort is part of DOE’s SunShot Initiative, a collaborative national effort to reduce the cost of solar energy 75% by the end of the decade. SunShot investments encourage rapid, widespread adoption of solar systems across the country, help the U.S. solar industry overcome technical barriers and reduce costs, boost U.S. competitiveness in the worldwide market for solar technologies, and provide support for clean energy jobs for years to come. Through this solicitation, DOE seeks to support research in technologies that have the potential to dramatically increase efficiency, lower costs, and deliver more reliable performance than existing commercial and near-commercial CSP systems. DOE expects to fund 20-22 projects, and encourages industry, universities, and its national laboratories to apply. Pre-applications are due November 22, and full applications are due February 7, 2012. This SunShot CSP opportunity seeks to develop innovative concepts that could lead to performance […]

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