Problem

The average carbon dioxide reading surpassed 400 parts per million at the research facility atop the Mauna Loa volcano on the island of Hawaii for the 24 hours that ended at 8 p.m. on Thursday.  Chris Stewart/Associated Press

nytimes.com - by Justin Gillis - May 10, 2013

The level of the most important heat-trapping gas in the atmosphere, carbon dioxide, has passed a long-feared milestone, scientists reported Friday, reaching a concentration not seen on the earth for millions of years.

Scientific instruments showed that the gas had reached an average daily level above 400 parts per million — just an odometer moment in one sense, but also a sobering reminder that decades of efforts to bring human-produced emissions under control are faltering.

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National Oceanic and Atmospheric Administration (NOAA) monitoring program
http://www.esrl.noaa.gov/gmd/ccgg/trends/weekly.html

earth-policy.org

Full Planet, Empty Plates: The New Geopolitics of Food Scarcity

Chapter 2. The Ecology of Population Growth

by Lester R. Brown

Throughout most of human existence, population growth has been so slow as to be imperceptible within a single generation. Reaching a global population of 1 billion in 1804 required the entire time since modern humans appeared on the scene. To add the second billion, it took until 1927, just over a century. Thirty-three years later, in 1960, world population reached 3 billion. Then the pace sped up, as we added another billion every 13 years or so until we hit 7 billion in late 2011.

Image: Article illustration by Brett Ryder

economist.com - July 16th 2009

Robert Lucas, one of the greatest macroeconomists of his generation, and his followers are “making ancient and basic analytical errors all over the place”. Harvard's Robert Barro, another towering figure in the discipline, is “making truly boneheaded arguments”. The past 30 years of macroeconomics training at American and British universities were a “costly waste of time”.

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Honeybees are vital for pollinating crops - a job that would be very costly without them

bbc.co.uk - April 29, 2013

The European Commission will restrict the use of pesticides linked to bee deaths by researchers, despite a split among EU states on the issue.

There is great concern across Europe about the collapse of bee populations.

Neonicotinoid chemicals in pesticides are believed to harm bees and the European Commission says they should be restricted to crops not attractive to bees and other pollinators.

But many farmers and crop experts argue that there is insufficient data.

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