21 November 2018 Current Affairs:
The Environment Ministry approved a project led by scientists at the Indian Institute of Technology (IIT) Kanpur to induce artificial rain via cloud seeding in Delhi. The objective is to clear smog in Delhi. The success of the project depends on the presence of a minimum quantity of rain-bearing clouds over Delhi.
In the project, an aircraft has been planned to fly into the clouds and inject silver iodide, which will lead to the formation of ice crystals that will make the clouds denser, cause them to condense into rain and settle atmospheric dust enough to clear the sky.
Researchers at IIT-Kanpur will use an aircraft of the National Remote Sensing Agency, an ISRO-affiliated body for the exercise. The Indian Meteorological Department (IMD) will provide forecasts on the likelihood of conducive clouds. Delhi’s Air Quality Index (AQI) on 20 November was in the very poor category.