Charlie Hall champions a revolutionary idea known as "energy return on energy invested." Every plant, animal and human civilization lives by EROI, he explains.
The act of shark finning flies directly in the face of sustainable living. We need to outgrow this practice and embrace a positive relationship with sharks.
Buying sustainable seafood doesn't have to be expensive -- the only thing that is truly pricey is choosing to sacrifice the health of oceans and fisheries.
A series of dams proposed along the Mekong River threaten 41 fish species with extinction and puts the livelihoods of nearly half a million people at risk.