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New Model Predicts Lower Future Population

Written by , on April 5, 2013

The United Nations estimate of future world population is 9.3 million by 2050, rising to 10.1 billion by 2100. However, the U.N. figures are given with a very wide range of uncertainty – between 6.2 billion and 15.8 billion in 2100. A new model developed by a team from the Autonomous University of Madrid (UAM) […]  Read more »

Wealth Inequality in the U.S. & Australia

Written by , on March 11, 2013

The video clip below graphically describes the shocking disparity in wealth between the richest and poorest groups of Americans. The video points out that the wealth disparity is very different from what most Americans think is the case and what they would want it to be and includes a chart illustrating this. A similar Australian […]  Read more »

Energy Efficiency of Grid Storage Technologies

Written by , on March 9, 2013

Researchers at Stanford University's Global Climate and Energy Project have published the results of a study of the energy efficiency of different ways of storing energy on the electricity grid. The study found that compressed air and pumped hydro storage are by far the most energy-efficient techniques. Over its lifetime, compressed air storage can store […]  Read more »

Removing Top Predators Can Dramatically Change CO2 Emissions

Written by , on February 18, 2013

When Trisha Atwood of the University of British Columbia studied the effect of removing predator fish from ponds and rivers in Canada and Costa Rica, she found a consistent pattern – carbon dioxide emissions increased more than tenfold after the predators were removed. Wiping out the top predator results in a "trophic cascade" in which […]  Read more »

The Hidden Cost of Hamburgers

Written by , on February 15, 2013

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How Much Will Sea Levels Rise – And When?

Written by , on January 24, 2013

Researchers at the UK’s National Oceanography Centre in Southampton have found that greenhouse gas concentrations similar to the present have been associated with sea levels at least nine metres above current levels. The researchers compiled more than two thousand pairs of CO2 and sea level data points, spanning critical periods within the last 40 million […]  Read more »

Plastic Gyres in Oceans Will Grow for 500 Years

Written by , on January 22, 2013

A team of researchers, led by  Dr Erik Van Sebelle, at the Australian Research Council Centre of Excellence for Climate System Science say that it will take at least 500 years to stop the growth of five swirling masses of plastic waste in the world's oceans even if we could immediately stop any more plastic […]  Read more »

Welcome to the Rest of Our Lives

Written by , on July 12, 2012

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Green Job Growth

Written by , on May 30, 2012

The U.S. Labor Department recently announced the results of its first ever survey on green jobs in the United States. Green jobs accounted for 2.4 percent of total employment in 2010, or approximately 2.3 million jobs. The following graph shows job category growth as measured by LinkedIn. Jobs in renewables and the environment are growing […]  Read more »

A New Non-standard Stardard for EV Charging

Written by , on May 19, 2012

A group of European and American car makers has announced the adoption of the J1772 standard developed by the International Society of Automotive Engineers for electric vehicle charging. The single plug system is to be adopted by Ford, General Motors, Chrysler, BMW and the Volkswagen group (including Porsche and Audi). The problem is that Nissan, […]  Read more »