A Kyoto in every home
A wireless transmitter that calculates energy consumption. Dan Schank

Burn, baby, burn
Terra preta not only offers the world's most sustainable farmland but could help control global warming. Craig Cox

Plug in your Prius
A group of California-based engineers, electric-car fans and environmental activists have been tinkering to create a plug-in hybrid that can be charged at any outlet and can drive farther on electricity. Jacco Kroon

What the world needs now
We remember Gandhi as an opponent of colonialism and a campaigner for social justice. But he also pioneered everything from environmentalism to fair trade. Sixty years after his death, here's what Gandhi still has to teach us.
Ode Editors

From the heart
Ernest Madu left a lucrative career as a doctor in the U.S. to build a cardiology clinic in Jamaica - and show that quality health care is possible in the developing world. Jay Walljasper

Blue sky thinking
Peter Barnes' Sky Trust would make companies pay for permission to pollute - and then give the money back to us. Janet Paskin

Hot stuff
Bhutanese refugees in Nepal have a new way to prepare meals, without firewood, kerosene or the risk of smoke inhalation - the solar cooker. Marco Visscher

Power points
Acupuncture has been practised for millennia in China, but it's only now getting the attention it deserves from western medicine. Kim Ridley

Give bees a chance
Reports of catastrophic declines in the bee population have scientists buzzing. Is it mites? GM crops? Mobile phones? Habitat loss? Here's what the plight of the humble bee says about our own relationship to nature. Pat Thomas

"God saw that everything was fine"
German Benedictine monk Anselm Grun on silence, consumerism, the senses - and the need to see yourself as you really are. Tijn Touber

We don't need no supervision
Kids may find it harder to grow up if adults over-regulate their lives. Tim Gill

Strengthening the weakest link
How investors can help forge safer, more transparent supply chains. Amy Domini

The meanings of life
Four noble truths of connectedness. David Servan-Schreiber

"We should start eating insects"
Why Arnold van Huis would like us to eat cricket pies, fried grasshoppers and mealworm quiche. Marco Visscher