of the global commitment to phasing out greenhouse gases produced by burning coal, oil and natural gas.
"While the Paris Agreement represents a remarkable diplomatic achievement, it will be judged by history as little more than words on paper if the world fails to take the level of action needed to prevent the loss of entire island nations," Maldives environment minister Thoriq Ibrahim told delegates Friday.
The stocktake agreed Saturday must quantify the shortfall to determine what more needs to be done.
In Bonn, negotiators also worked on a nuts-and-bolts rulebook, to be finalised at the next UN climate conference in Katowice, Poland in December 2018, for putting the Paris Agreement into action.
Some progress was made, but observers and delegates complained that things were moving too slowly.
Many lamented the void in "political leadership" left by the departure of Obama, and by German Chancellor Angela Merkel´s failure to set a timetable for phasing out coal-fired power plants, which produce 40 percent of Germany´s electricity.
The talks saw rich and poor nations butt heads on several issues -- mainly money.
Developing countries demand detailed progress reports on rich nations´ promise to boost climate finance to $100 billion (85 billion euros) per year by 2020.
The world's poorer nations -- often the first to feel the sting of climate change impacts -- need cash to make the costly shift away from atmosphere-fouling coal, and to shore up their defences against extreme weather.
Donor nations, in turn, insists that emissions cuts by developing countries be subject to verification. The United States, which under Trump has slashed funding for climate bodies and projects, took a tough stance in the finance negotiations in Bonn, a position that angered some delegates.
Adding to the tension, White House officials and energy company executives hosted an event on the conference margins to defend the use of fossil fuels.
On Thursday, 20 governments from both wealthy and developing nations, led by Britain and Canada, countered with the launch of a coal phase-out initiative.
The United States is the world´s biggest historical greenhouse gas polluter, second only to China.
"In a year marked by extreme weather disasters and potentially the first increase in carbon emissions in four years, the paradox between what we are doing and need to be delivering is clear," WWF climate head Manuel Pulgar-Vidal said of the talks.