Promises made at previous summits have not delivered enough protection for the oceans — campaigners are pushing for better results from Rio+20, writes Prime Sarmiento.

Yuan Tseh Lee, president of the International Council for Science, tells SciDev.Net what scientists must achieve at Rio+20.

'Blue carbon' is seen as an increasingly important issue, but it needs to be backed up by better science, reports Mićo Tatalović.

Climate change is a reality in developing regions, who say the international community must not neglect better adaptation strategies.

Hannah Chalmers gives the low-down on how reducing emissions from deforestation can play a central role in tackling climate change.

Remote sensing is crucial for getting the measure of forest loss. Countries don't need their own satellites but they do need training.

Using low-soot stoves in Africa and Asia would cut levels of black carbon, which warms the atmosphere.

Climate change threatens food crops across the world. Now scientists are re-focusing their efforts on crop resilience, rather than yields.

Brazil's successful sugarcane ethanol industry owes much to massive investment in infrastructure and research, reports Carla Almeida.

India has experienced first-hand the delays and difficulties associated with developing a carbon credits market, writes Paroma Basu.

Controlling the amount of pollution that goes into China's Taihu Lake is the key to managing the algal blooms, writes Lucie Guo.

Scientists in the Himalayas are battling poor resources to protect the area from the effects of climate change. T. V. Padma reports.

T. V. Padma reports on Bhutan's dilemma: how to reconcile conservation, economic development and happiness in a modern world.

Indonesia's carbon-storing peatlands are interesting the world's carbon-traders. But that's news to the locals, reports Gillian Murdoch.

China's carbon emissions have shot up as energy demands soar. But will this change with new technology? Jane Wu investigates.

The oil-rich United Arab Emirates is going green by building a new city powered by solar energy, writes Ahmed A. Elewa.

Tim Hirsch reports on a method of extracting methane from hydroelectric dams to significantly reduce greenhouse gas emissions.

The Qinghai-Tibet Railway is an ecological success, but will need long-term monitoring, say Changhui Peng and colleagues.

Adaptation is now seen as an important aspect of climate change action and Africa's villages have much to teach us, reports Jim Giles.