Although the region is not a big polluter, the threat of climate change means it should lead the way on cuts, argues Crispin Maslog.

Climate Innovation Centers can promote clean technologies but need backing with a coordinated effort, says policy specialist Ambuj Sagar.

Using the human rights framework to tackle challenging ethical questions can guide climate policy, argues political philosopher Simon Caney.

The contribution of tropical hydropower plants to global warming should be included in national inventories, say P. Fearnside and S. Pueyo.

Forecast to be underwater by 2050, the Pacific island states must plan for climate adaptation, with global support, urges Crispin Maslog.

The concept of environmental thresholds could weaken progress on sustainability at Rio+20, says global change scientist Simon L. Lewis.

Chuluun Togtokh calls for a change to the UN's current human development index, which "celebrates gas-guzzling developed nations".

Cities are vulnerable to climate change but can adapt with policymaking informed by sound science says Cynthia Rosenweig and colleagues.

The challenge for Latin American and Caribbean governments is to combine an approach to development with low-carbon emissions, says Omar Vidal.

Understanding how carbon dioxide impacts food quality is vital to tackle malnutrition effectively, says agricultural researcher Lewis Ziska.

Developing countries need ‘green’ development, not emission cuts, to fight climate change, say B. Sudhakara Reddy and Gaudenz B. Assenza.

Simply reducing livestock farming in developing countries will neither cut emissions nor benefit the poor, says livestock expert Carlos Seré.

India should offer to make its national action plans part of a global climate deal in Copenhagen negotiations, says Rajendra K. Pachauri.

Rich nations should set an example at Copenhagen by committing to emissions reductions of 40 per cent, says Chinese scientist Jiahua Pan.

To get the best for and from Africa, REDD negotiators must hear African viewpoints, says head of the African Forest Forum, Godwin Kowero.

Without knowing REDD's true costs we can't analyse the benefits, says the ASB Partnership for the Tropical Forest Margins' Peter A. Minang.

South Asian countries must be rewarded for afforestation, reforestation and carbon stock growth, say N. H. Ravindranath and Shamama Afreen.

Reducing deforestation is crucial to mitigate climate change, but it mustn't be used as an excuse to continue polluting, says Roman Czebiniak of Greenpeace.

Forests are valuable assets, and reduced emissions from deforestation and degradation (REDD) should be prioritised, says Virgilio M. Viana.