Spending our carbon budgets wisely

The UN's Intergovernmental Panel on Climate Change (IPCC) sent a clear message to the world with its last report, issued in early October in South Korea: the world needs to act immediately to cut greenhouse gas emissions. ...

Human-like walking mechanics evolved before the genus Homo

Ever since scientists realized that humans evolved from a succession of primate ancestors, the public imagination has been focused on the inflection point when those ancestors switched from ape-like shuffling to walking upright ...

Fighting climate change with 'poop power'

The stench of clogged toilets fills the air at the US capital's wastewater treatment facility. And for good reason—it's one of the world's largest projects to transform human waste into electricity.

Insects as the food of the future

As the human population grows, it is critical that the drain on the planet's resources be lessened by decreasing consumption of animal protein. According to two panel discussions on June 23 and 24 at the 2014 Institute of ...

Sustainable cities must look beyond city limits

City leaders aspiring to transform their cities into models of sustainability must look beyond city limits and include in their calculation the global flow of goods and materials into their realm, argue researchers in the ...

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