The biggest development on tackling climate change since the Paris Accord of 2015 has been the International Solar Alliance. The International Solar Alliance (ISA) that aims at increasing solar energy deployment in member countries, came into legal, independent existence in December and is the first treaty-based international intergovernmental organisation to be based out of India.
The ISA was launched on November 30, 2015 in Paris, on the sidelines of COP-21, the UN climate conference.The ISA aims to mobilize more than $1000 billion in investments by 2030 for “massive deployment” of solar energy, pave the way for future technologies adapted to the needs of moving to a fossil-free future and keep global temperatures from rising above 2°C by the end of the century.
India has committed itself to having 175,000 MW of renewed energy in the grid by 2022. India and France initiated the International Solar Alliance. It already has 121 members [countries] and is perhaps the single most important global achievement since the Paris Agreement of 2015.