When humans try to constrain rivers, the results can be calamitous. (Editorial)

http://www.newscientist.com/article/mg21028142.700-mississippi-delta-blu...

Non-communicable diseases represent a new frontier in the fight to improve global health. Worldwide, the increase in such diseases means that they are now responsible for more deaths than all other causes combined.

Models show that even a 'small' nuclear war would cause catastrophic climate change. Such findings must inform policy, says Alan Robock.

With more than half the world’s population now living in urban areas and with much of the world still urbanizing, there are concerns that urbanization is a key driver of unsustainable resource demands. Urbanization also appears to contribute to ever-growing levels of greenhouse gas (GHG) emissions.

The United Nations says there could be 10 billion people on Earth by the end of the century. Fred Pearce finds problems in its analysis.

In many parts of the world, the number of large wildfires has been increasing at an alarming rate. Among them, so-called “mega-fires” have emerged. These extraordinary conflagrations are unprecedented in the modern era for their deep and long-lasting social, economic, and environmental impacts. This paper examines eight mega-fires from around the globe. It attempts

Glaciers are in rapid decline and loss of these glaciers will have profoundly negative impacts on climate and human life, according to this published report by scientific working group commissioned by the Vatican’s Pontifical Academy of Science.

The FAO Global Information and Early Warning System has released the latest Global Food Price Monitor, citing an increase in the FAO Cereal Price Index in April. Global prices of wheat and maize increased sharply last month, while global rice prices continued to decline.

An international Deloitte report, commissioned by British American Tobacco, reveals that increasing the size of health warnings on packs and introducing graphic warnings has not directly reduced tobacco consumption – and calls into question whether plain packaging will achieve government health objectives.

The current world population of close to 7 billion is projected to reach 10.1 billion in the next ninety years, reaching 9.3 billion by the middle of this century, according to the medium variant of the 2010 Revision of World Population Prospects, says this UN press release.

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