The summit followed a year of extreme weather events in which many climate records were broken.
What is COP28 and where is it?
COP28 is the 28th annual United Nations (UN) climate meeting where governments discuss how to limit and prepare for future climate change.
The summit took place in Dubai, in the United Arab Emirates (UAE), from 30 November to 12 December 2023, although it overran.
What does COP stand for?
COP stands for "Conference of the Parties", where the "parties" are the countries that signed up to the original UN climate agreement in 1992.
Why was holding COP28 in Dubai controversial?
The UAE is one of the world's top 10 oil-producing nations.
It appointed the chief executive of the state-owned oil company, Sultan al-Jaber, as COP28 president.
Oil - like gas and coal - is a fossil fuel. These are the main causes of climate change because they release planet-warming greenhouse gases like carbon dioxide when burned for energy.
Mr Jaber's oil company is expected to rapidly expand production this decade.
Documents leaked to the BBC also suggested the UAE planned to use its role as host to strike new oil and gas deals.
Mr Jaber previously argued that he was uniquely well-placed to push for action from the oil and gas industry.
He said that as chairman of renewable energy firm Masdar, he had also overseen the expansion of clean technologies like wind and solar power.
Why is COP28 important?
It is hoped COP28 will help keep alive the goal of limiting long-term global temperature rises to 1.5C. This was agreed by nearly 200 countries in Paris in 2015.
The 1.5C target is crucial to avoid the most damaging impacts of climate change, according to the UN's climate body, the Intergovernmental Panel on Climate Change (IPCC).
Long-term warming currently stands at about 1.1C or 1.2C compared with pre-industrial times - the period before humans started burning fossil fuels at scale.
However, although the exact numbers are uncertain, the world is currently on track for around 2.7C of warming by 2100.
