“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.

Islamabad(SANA)Electricity trading with Pakistan is part of a larger plan of a South Asian transmission link, which will help countries in the sub-continent harness energy potential of the region.
India plans to sell 500 megawatts (MW) of electricity to Pakistan, which will help the country reduce its chronic power shortage, according to Calcutta-based newspaper The Telegraph.

Officials of the two countries are scheduled to meet next month to finalise the issues of tariff and grid connectivity.