Exposure to toxic air both indoors and out kills some 600,000 children under the age of 15 each year, WHO warns.

Iran has marked a turning point in its ambitious renewable energy goals, opening its largest wind farm in the northern Qazvin province.

UK renewables investor Quercus says it has halted a plan to build and operate a 600-megawatt (MW) solar farm in Iran in the face of US sanctions.

An Iranian official says negotiations with Turkey's Unit International to build two natural gas combined cycle power plants in Iran with $1.2 billion of investment are in the final stage.

Iran has currently 400 MW of renewable capacity in place but it has signed a raft of agreements, mostly with European companies, to produce more green energy.

Indonesia, the world's largest Muslim-majority country, is set to go green with a new initiative that aims to establish 1,000 eco-mosques by 2020.

The work located in central Iran is expected to take three years, with the project coming online in 100 MW phases every six months, Quercus said.

The country currently has 77,000 megawatts of power capacity, of which 360 megawatts is renewable energy. Most of the electricity generated in the country comes from thermal power plants which use fossil fuel.

A number of American cities are continuing to pursue renewable energies even as President Trump is steering the US away from actively fighting climate change.

Iran has built 7,405 megawatts of new capacity over the past three and half years, including 2,200 megawatts last year.