William C. Clark: ‘Sustainability isn’t a new concept’

Listen to Harvard's William C. Clark talk about what 'sustainable development' really means, and why it's a matter of life and death.

Malcolm Potts on empowering Afghanistan’s women

Malcolm Potts said he agrees with the many studies which suggest that empowering women through increased access to education and contraceptives is key to 21st century peace and stability.

Half of kids under age 3 malnourished in India

Haddad said that, in other developing countries, when income goes up, malnutrition goes down by 3-4%. But even with India's booming economy, the numbers of malnourished kids have remained practically the same.

Agriculture can be part of climate solution

Secretary Vilsack pointed to past increases in efficiency of US agriculture, have cut greenhouse gas emissions by about half in total crops per acre.

Vicki Wilde says women are key to agriculture in Africa

Many parts of Africa struggle with food insecurity. Vicki Wilde believes that putting African women in agricultural research positions can help.

Herman Daly on the case for a steady state economy

Herman Daly has advocated a transition to what's called a steady state economy, in which both human population and physical wealth are relatively stable.

Juerg Matter on Iceland’s new carbon storage project

"Obviously, carbon dioxide storage is not the silver bullet solution for climate change, but it's one of them, and it's a good one," says Juerg Matter .

Walter Baethgen helps farmers prepare for climate extremes

Walter Baethgen says climate variability could threaten the livelihoods of small farmers, like those in Latin America, who are already struggling.

Howard Herzog explains what clean coal means

Some people say there's no such thing. EarthSky asked research engineer Howard Herzog at the MIT Energy Initiative what 'clean coal' means.

Jeffrey Sachs says challenge of sustainability defines our generation

Jeffrey Sachs said the quality of our lives - and our children's lives - depends on making the human population on the planet more sustainable.

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