TEDx

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Can We End The Global Water Crisis? James Famiglietti

Iconic toilets: Mathew Lippincott at TEDxConcordiaUPortland

One very dry demo by Mark Shaw

Fish,Plants and renewable energy : Emad Alsakkaf at TEDxSanaa 2012

Scarcity of water in Yemen: An urgent call for action : Kaled Alamarie at TEDxSanaa 2012

Allan Savory: How to green the world’s deserts and reverse climate change

The winddrinker: clean drinking water for all

A Census of the Ocean: Paul Snelgrove

Rob Harmon: How the market can keep streams flowing

Damian Palin: Mining minerals from seawater

Eric Sanderson pictures New York’s natural history

Lewis Pugh swims the North Pole