By finding new markets for vegetables that require little water, a handful of Jordanian farmers are proving that agriculture can prosper in a dry land.
The US, China, India, South Africa, and Brazil agreed to a voluntary climate pact. President Obama acknowledged that 'we have much further to go.' The deal did not produce commitments on emissions reductions.
Israel settlements use more than four times as much water as Palestinians and the absence of a peace agreement is stalling negotiations to improve the situation.
An ambitious commitment by some of the world's largest companies not to buy beef or leather products from the Brazilian Amazon may falter if a strong monitoring system isn't put in place.
New coal-fired power plants will capture CO2 and inject it into the earth.
Last week, Greenpeace failed in its bid to force Norway's StatoilHydro to abandon a $2 billion investment in a project that it says produces 10 times the greenhouse gases as North Sea drilling.
The compromise measure would mandate reductions in greenhouse-gas emissions and require greater use of renewable energy. The Senate could be a major stumbling block.