With the world reeling from the economic fallout of the pandemic and the war in Ukraine, senior officials from 40 countries met Monday in Berlin for heart-to-heart talks on how to stay focused on fighting climate change and addressing its impact.

Organizers have billed the two-day gathering as an opportunity to rebuild trust between rich and poor nations ahead of this year’s U.N. climate summit in Egypt, after technical talks last month achieved little progress on key issues such as climate aid for developing countries.

“Many of the poorest and most vulnerable countries in the world are experiencing severe climate impacts now,” Germany climate envoy Jennifer Morgan told The Associated Press. “The question is how to support them in both adapting to those impacts and when they experience real losses and damages. We must also show more solidarity.”

Developing countries are still waiting for rich nations to provide $100 billion in climate aid each year, a target they were meant to reach by 2020.

FILE - Traffic moves along the Hollywood Freeway in Los Angeles, California, Dec. 12, 2018.

FILE – Traffic moves along the Hollywood Freeway in Los Angeles, California, Dec. 12, 2018.

Big polluters, however, have also long resisted the idea that they should pay for the destruction their greenhouse gas emissions are causing around the world.

The closed-doors talks in Berlin kicks off with experts delivering a presentation on the issue of “loss and damage ” to ministers, who will then break into small groups to discuss and listen to each other in the hope of building trust ahead of November’s U.N. summit in Sharm el-Sheikh.

The meeting in Berlin comes as scientists say the extreme heat slamming large parts of the northern hemisphere in the past few weeks could become the new normal in summer if global warming continues.

“As this meeting is taking place, parts of Europe are baking, indeed they’re burning; and sadly, it’s an experience that is all too familiar to many millions across the globe already,” said Alok Sharma, the British official who led last year’s climate talks in Glasgow. He told delegates as the meeting opened: “My plea to you all is, please, let’s speed up our work.”

“It is incumbent upon us in these uncertain times to act swiftly to ensure that climate action remains at the top of the international agenda, and that the current state of affairs is not taken as a pretext to backtrack or renege on previous commitments — especially those related to supporting developing countries,” said Egyptian Foreign Minister Sameh Shoukry, who will chair the Sharm el-Sheikh summit.

China was taking part in the Berlin meeting. Russia was not invited.

The question of energy sources endangered by Russia’s war in Ukraine looms over the talks.

Environmental activists warn that recent efforts by countries such as Germany to tap new sources of fossil fuels could undermine countries’ already fragile climate actions.

German Chancellor Olaf Scholz is expected to discuss buying liquefied natural gas from Egypt with the country’s President Abdel Fattah al-Sisi in Berlin on Monday, just a few miles from where the climate talks are being held.

FILE - A Uniper coal-fired power plant and a BP oil refinery and chemical plant are at work in Gelsenkirchen, Germany, on Wednesday evening, Dec. 4, 2019.

FILE – A Uniper coal-fired power plant and a BP oil refinery and chemical plant are at work in Gelsenkirchen, Germany, on Wednesday evening, Dec. 4, 2019.

“The Russian war of aggression is forcing us to take short-term decisions we don’t like, including the increased use of coal for a very limited period of time,” said Morgan, who was previously the head of Greenpeace International.

“But we are not only sticking rock-solidly to our climate goals — we are accelerating the energy transition and will phase-out the use of fossil energy even faster,” she added, citing a newly approved plan to ramp up solar and wind power generation in Germany.

U.S. climate envoy John Kerry, likewise, comes to the talks following setbacks suffered in the U.S. by President Joe Biden in his efforts to regulate pollution and boost renewable energy such as wind and solar power.