Earth Day first began 52 years ago as an effort to organize teach-ins on university campuses about sustainability amid threats to climate change from human behaviours. Now, April 22 represents an annual date for nearly 200 countries to celebrate environmental diversity as well as to support environmental protection.
Ajay Kumar Sood, a member of the Prime Minister's Science, Technology and Innovation Advisory Council, has been appointed to the post for three years, replacing renowned biologist K Vijayaraghavan.
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