“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. ... Read more about Pollution in China: Man-made and visible from space
Energy demands in South Asia are growing at rate of over 6.0 per cent a year - a pace that is far in excess of the region's capacity to meet. The fact that a sizeable section of the population does not have access to electricity makes energy security a daunting challenge for the countries of this region. ... Read more about Energy ring best option to solve regional needs
Increase of 52% to $10.3bn in 2011 was based on strong solar performance
India's transformation into a cleantech powerhouse moved up a gear in 2011 when it racked up investments of $10.3bn in the sector, a growth rate of 52 per cent year on year that dwarfed the rest of the world's significant economies.
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. ... Read more about Energy without borders