With hurricanes, floods and other impacts of climate change becoming increasingly destructive, countries urgently need to step up their ambitions to cut emissions if they are to keep global warming within safe limits, experts said ahead of UN climate talks starting on Monday.
About 163 countries have submitted plans on how they will contribute to meeting the Paris climate agreement goal to limit global warming to well below 2 degrees Celsius above pre-industrial levels.
But put together, the plans are likely to lead to a 3 degree temperature rise this century, according to the United Nations.
Nicholas Nuttall, spokesman for the UN Framework Convention on Climate Change, said the national plans delivered in advance of Paris, "were well known at the time to fall short of the Paris Agreement's long-term goals".
But the agreement also calls for countries to take stock of international progress on climate action and ratchet up the ambition of their national plans accordingly.
The first stock taking is set for next year, with the first more ambitious plans due in 2020.
This year has seen particularly severe weather of the type climate scientists have long warned about: severe floods in Asia, devastating hurricanes in the Caribbean and United States, and wildfires in California and southern Europe.
As 195 nations meet starting Monday in Bonn for UN climate talks, they will be working to create rules to implement the Paris agreement, including on sometimes contentious issues such as how reductions of climate-changing gases should be reported and checked by other nations.
But time is short, with global emissions of climate changing gases needing to peak by 2020 - just three years away - in order to keep warming to relatively safe levels, according to the World Resources Institute.


