<span style="color: #222222;">G20 signatories to the Paris Agreement on climate except the US have pledged to implement of the pact in full. In the final communique after the summit, G20 leaders said that the agreement is irreversible. </span><br />'' <br />'' <span style="color: #222222;">They also took note, of UN scientists' call for a more ambitious target of reducing the warming to 1.5 degrees Celsius above pre-industrial levels.</span><br />'' <br />'' <span style="color: #222222;">But the US reiterated its withdrawal from the agreement and affirms its strong commitment to economic growth and energy access and security.</span><br />'' <br />'' <span style="color: #222222;"> Meanwhile, amidst dire warnings of impending environmental disaster,  representatives from nearly 200 nations are gathering today of the UN climate summit in Poland to firm up their plan to prevent catastrophic climate change. </span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">The smaller and poorer nations that will bare the devastating brunt of the climate change are pushing for richer states to make good on the promises they made in the 2015 Paris agreement.<br />''</span><br />'' <span style="color: #222222;">Experts say with only a single degree Celsius of warming so far, the world has already seen a crescendo of deadly wildfires, heatwaves and hurricanes made more destructive by rising seas.</span><br />''