GS-III: Sci-Tech, Environment & Disaster Management

Last modified: Jan 08, 2018

Climate exiles or Environmental migrants are people who are forced to migrate from their homes due to sudden or long-term impact of their local climates as a result of which their well-being and source of livelihood stands badly disrupted. Such changes include droughts, desertification, sea level rise and also disruption…
Last modified: Jan 08, 2018

The Government of India has recently submitted its Intended Nationally Determined Contributions (INDCs) to the UN Framework Convention on Climate Change (UNFCCC). Background The earliest notion of INDCs had come into the 2013 COP-19 held at Warsaw, Poland. In that conference, the governments around the world, "who were willing to…
Last modified: Jan 08, 2018

TV White Space Communications is the most preferred wireless alternative for long distance communication. TV White Spaces technology utilises the unused “white space” to provide cheap Internet connectivity to remote areas. “white space” refers to gaps of unused spectrum between terrestrial broadcast channels in the 470-700MHz (TV-UHF) band. The gaps are…
Last modified: Jan 08, 2018

Recently, the Cold Atom Laboratory team announced that they have succeeded in producing a Bose-Einstein condensate at NASA's Jet Propulsion Laboratory. This is being touted as a key breakthrough for the CAL which shall debut on space station in late 2016. This backgrounder discusses the basics of CAL. What is…
Last modified: Jan 08, 2018

Water Footprint is a scientific term which means total amount of freshwater used directly and indirectly by an individual, community or a country over a period of time. It is a geographic indicator which shows the amount of water used/polluted by a group along with the location. The consumption of…
Last modified: Jan 08, 2018

The thrust of new Government towards clean India has recently made the government to impose Swachh Bharat Cess of 0.5% on all services liable for service tax. The Swachh Bharat cess will be an additional levy, making the effective service tax rate 14.05% against the current 14%. In budget 2015-16,…
Last modified: Jan 08, 2018

In the run-up to Pakistan Prime Minister Nawaz Sharif’ visit to US in October 2015, the Pakistan Foreign Secretary Aizaz Chaudhry confirmed that Pakistan has developed tactical nuclear weapons to bridge the gap for war that India had created through its cold-start doctrine. His statement has cleared the speculation about…
Last modified: Jan 08, 2018

Under the satellite navigation system, several satellites are placed around Earth in different orbits to provide geo-spatial positioning (location on or above the Earth in three dimensions). The satellite navigation system can be used to locate latitude, longitude, altitude, velocity and the time information. The satellites in the navigation system…
Last modified: Apr 26, 2018

On 12 December 2015, the Paris Agreement was adopted as an agreement within the UNFCCC framework. On 22 April 2016 {Earth Day}, 175 countries around the world have signed this agreement at the UN headquarters in New York, United States. India was also one of the 175 countries that signed…
Last modified: Jan 08, 2018

The COP-21 Climate Conference was held in Paris, France from 30 November to 12 December 2015. During this conference, India and France have launched the International Solar Alliance (ISA), which has been creating buzz in the international media. Here is a brief backgrounder on this new Indian initiative. What is…