Trees, targets and trillions: what's on the agenda at COP30?

That does not mean big polluters will get off easily at COP30 in Brazil, with climate-vulnerable nations frustrated at their level of ambition and financial assistance to those most affected by a warming planet.

Here are the big issues to look for as world leaders gather in the city of Belem on Thursday and Friday before the start of formal negotiations the following week:

- Emissions -

The world is not cutting emissions fast enough to meet the goals of the Paris Agreement and no amount of pomp and pageantry at COP30 will be able to sugarcoat that uncomfortable reality.

Under the climate accord, signatory nations are required every five years to submit stronger targets for cutting greenhouse gas emissions, thereby steadily raising the collective effort to reduce global warming over time.

The latest round of pledges for 2035 were due in February to give the UN time before COP30 to assess the quality of these commitments.

Most nations missed that deadline but by early November, about 65 had turned in their revised plans. Few have impressed and China's target in particular fell well below expectations.

The European Union, riven by infighting between member states, cannot agree on its target, while India is another major emitter yet to finalise its pledge.

A reckoning could be coming in Belem. Brazil -- which described the latest round of pledges as "the vision of our shared future" -- is facing pressure to marshal a response.

- Money -

Money -- specifically, how much rich countries give poorer ones to adapt to climate change and shift to a low-carbon future -- is a likely point of conflict in Belem, as in past COPs.

Last year, after two weeks of acrimonious haggling, COP29 ended unhappily with developed nations agreeing to provide $300 billion a year in climate finance to developing ones by 2035, well below what is needed.

They also set a much less specific target of helping raise $1.3 trillion annually by 2035 from public and private sources. Developing nations will be demanding some actual detail about this at COP30.

Adaptation is a major focus of the summit, particularly a funding shortfall to assist vulnerable nations in protecting their people from climate impacts, such as building coastal defences against rising seas.

- Forests -

Brazil chose to host COP30 in Belem because of its proximity to the Amazon, an ideal stage to draw the world's attention to the vital role of the rainforest in fighting climate change.

At COP30, the hosts will launch a new, innovative global fund that proposes rewarding countries with high tropical forest cover that keep trees standing instead of chopping them down.

The Tropical Forests Forever Facility (TFFF) aims to raise up to $25 billion from sponsor countries and another $100 billion from the private sector, which is invested on financial markets. Brazil has already kicked in $1 billion.

Clement Helary, from Greenpeace, told AFP the TFFF "could be a step forward in protecting tropical forests" if accompanied by clearer steps at COP30 towards ending deforestation by 2030.

The destruction of tropical primary forest hit a record high in 2024, according to Global Forest Watch, a deforestation monitor. The equivalent of 18 football fields per minute was lost, driven mostly by massive fires.

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