In a significant move on climate change issues at G20 summit, the leaders here on Saturday agreed to go for rapid, deep and sustained reductions in global GHG emissions by 43% by 2030 relative to the 2019 levels to limit global warming to 1.5 degrees C in sync with reaching global net-zero emissions by 2050, and promised to “triple renewable energy capacity globally” by 2030 to meet that goals.