Science & Tech Current Affairs

Science & Technology Current Affairs 2019-2020 category comprises current affairs with all important national / international updates in science and tech and events for the year 2019-2020 for UPSC, States, Civil services, SSC and other competitive examinations of India and States.

Solution to Global Warming: Re-freeze the Arctic

image As per a novel solution offered by an American scientist David Keith to tackle global warming, we could refreeze the Arctic by injecting reflective particles into the atmosphere with the help of a few modified jets. These particles would reduce the amount of sunlight reaching the Earth, engineering a regional effect that could bring ice back to the Arctic. 

As per him, slashing the penetration of sunlight by just 0.5% could be possible to restore the sea-ice around the North Pole to pre-industrial era levels. The costing of the operation would be around $8 billion a year. Currently the amount of ice in the Arctic Ocean has melted to an all time low in September, 2012, with the total area covered now half of what it was in the 1980s.

DRDO develops depth detector “Tarangini”

Scientists from the Naval Physical and Oceanographic Laboratory (NPOL), a Defence Research and Development Organization (DRDO) Lab, have developed a device named “Tarangini” which can fathom underwater depth and can also measure the hardness of the bottom surface.

Application: Tarangini can be a handy tool to rescuers as well as paramilitary forces who come across unfamiliar water bodies.