Super-high-resolution digital satellite photography is being used by researchers to help fight Malaria in Africa.

Mosquitoes' water habitats in Swaziland, Mozambique and SA's northern KwaZulu-Natal are being tracked by scientists, who are using imagery that has a visibility of up to five metres.

 “PM2.5” seems an odd and wonky term for the blogosphere to take up, but that is precisely what has happened in China in recent weeks. It refers to the smallest solid particles in the atmosphere—those less than 2.5 microns across. Such dust can get deep into people’s lungs; far deeper than that rated as PM10. Yet until recently China’s authorities have revealed measurements only for PM10. When people realised this, an online revolt broke out. Such was the public pressure that authorities caved in, and PM2.5 data are now being published for Beijing and a handful of other cities.

The 22-member Panel, established by the Secretary-General in August 2010 to formulate a new blueprint for sustainable development and low-carbon prosperity, was co-chaired by Finnish President Tarja Halonen and South African President Jacob Zuma. The Panel's final report, "Resilient People, Resilient Planet: A Future Worth Choosing", contains 56 recommendations to put sustainable development into practice and to mainstream it into economic policy as quickly as possible.

Iceland has lots of geothermal energy, Norway has hydropower. The wind blows hard in Scotland and the sun always shines in North Africa. Helen Knight explores plans to connect these diverse sources to a single network

Plans to supply all of Europe's electricity from renewable sources has come a step closer thanks to progress in efforts to build a continent-wide supergrid connected to North Africa and theMiddle East.