Rio+20 must launch SDGs to guide countries through complex development challenges, argues Colombian ministry official Paula Caballero Gómez.

Conflicts over shared water resources could be mitigated through science-based environmental cooperation, argue Saleem Ali and Pamela Griffin.

Pakistan urgently needs to refine its crop yield forecasting and estimation system to improve food production, says Ibrar ul Hassan Akhtar.

Next month's meeting in Brazil needs send the right signals to encourage progress on sustainability, says ODI's Claire Melamed.

World leaders must promote effective land use methods to mitigate drought, says Luc Gnacadja of the UN Convention to Combat Desertification.

Crispin Maslog says the region should follow the Philippines' lead and focus on renewable, not nuclear power.

Reforms in the Arab region should focus on transitioning to a green economy, argues award-winning environmental advocate Najib Saab.

Durable food security and agricultural growth depend on development strategies with resilience built in from the start, says Gordon Conway.

Jeremy Rifkin says the developing world could leapfrog into a new energy era by merging communication and renewable energy technologies.

Feeding South-East Asia's rapidly growing population requires a second Green Revolution, says Crispin Maslog.

Peter Messerli and colleagues argue that reforms in agricultural policy will be needed to build green economies in the developing world.

Climate change could benefit some Pacific fisheries, but tracking the success of adaptation needs effective monitoring, says Johann Bell.

More must be done to prevent damage of ocean data buoys that costs money, vital data — and lives, say Sidney Thurston and M. Ravichandran.

Improving access to information technology can help communities assess their own vulnerability and boost local planning, says John Waugh.

South-East Asia has suffered from neglecting planning for disasters. Governments must heed the warnings and act now, argues Crispin Maslog.

Business models that pair up cheap solar technologies with cell-phone services can provide the poor with renewable energy, says Carl Pope.

Africa must make sure its grassroots innovations can benefit from a new global green technology support mechanism, argues Linda Nordling.

The proposed UN World Environment Organisation is badly needed to give poor countries a strong voice in green policy, says Zakri Abdul Hamid.

Agro-ecology offers simple solutions and can align climate change with food security agendas, says UN adviser Olivier De Schutter.

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