Energy Internet needed in a crowded world

An Energy Internet is one component of Thomas Friedman's vision to change the way America thinks about - and uses - energy.

Affordable and green go together in home building

Fernando Pages builds homes that are affordable and green without the need for subsidies. Pages explains why green building is really advanced building, and how affordable and green go together.

World coal estimates are too high

No matter what you think of coal as an energy source, the fact may be that we have less to burn than previously believed, according to this scientist.

Gregory Burns on the brain, pain and finance

Hear neuroscientist Greg Berns talk how people are wired to cope with pain - or the threat of it and how the human brain makes painful financial decisions.

In tough times, the female brain is nature’s favorite

In tough times, the feminine reaction to stress and scarcity of resources is to gather, conserve, feed, nurture, to hunker down, nest and protect.

Robert Waide: ‘We’re seeing unprecedented and rapid change’

Biologist Robert Waide talks about the dangers of putting too much stress on our ecosystems, and the importance of changing our behavior before it's too late.

Kenneth Arrow asserts the economy is built on science

Hear Nobel laureate Kenneth Arrow talk abou the relationship between scientific innovation and economic progress. It is important to be informed.

Jo Pierce: ‘Private forests mean income, and much more’

Listen to Jo Pierce talk about his family's 2,000-acre forest in Maine, and the importance of respecting the land and preserving wildlife habitat.

Nerds: You really do have a chance

Are we women more likely to date an attractive, smart, creative guy or an attractive-but-dumb guy who can't strum a guitar and has never even attempted to write bad poetry?

Lori Hunter describes impact of HIV/AIDS on South Africa’s environment

Population scientist Lori Hunter talks about some of the broad impacts of the HIV epidemic in South Africa, including a possibly unsustainable reliance on local resources.