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As per the Indian Nitrogen Assessment (2017) report, Agriculture accounts for over 70 per cent of all nitrous oxide emission in the Indian environment. Out of it, around 77 per cent is contributed by chemical fertilisers.
Nitrous oxide is a greenhouse gas (GHG) that is about 300 times more powerful than carbon dioxide. Nitrous Oxide has replaced methane as the 2nd largest GHG emission from Indian agriculture in the last 15 years.
Three scientists have been awarded the Nobel Physics Prize 2018 for inventing optical lasers that have paved the way for advanced precision instruments to be used in corrective eye surgery.
Arthur Ashkin of the U.S.A has won one half of the nine million Swedish kronor (about $1.01 million) prize. He was honoured for his invention of “optical tweezers” that grab particles, atoms, viruses and other living cells with their laser beam fingers
Mr. Ashkin is the oldest winner of a Nobel prize, beating out American Leonid Hurwicz who was 90 when he won the 2007 Economics Prize.
Gerard Mourou of France and Donna Strickland of Canada shared the other half of the prize
Donna Strickland is the first woman to receive the prestigious award in 55 years
The first woman to win a Nobel Prize was Marie Curie, who won the Nobel Prize in Physics in 1903 with her husband, Pierre Curie, and Henri Becquerel. Maria Goeppert-Mayer was the second woman to win a Nobel Physics Prize. She won in 1963
Curie is also the only woman to have won multiple Nobel Prizes in 1911, she won the Nobel Prize in Chemistry. Curie’s daughter, Irène Joliot-Curie, won the Nobel Prize in Chemistry in 1935, making the two the only mother-daughter pair to have won Nobel Prizes.
The most Nobel Prizes awarded to women in a single year was in 2009, when five women became laureates.