Alok Sharma fought back tears as the Glasgow Climate Pact was agreed by delegates at the COP26 conference in Glasgow.
The COP26 president apologised as a late amendment on coal was added to the draft text by India.
Read more: COP26 agrees new global climate deal
More on the climate summit:
The COP26 global climate summit in Glasgow in November is seen as crucial if climate change is to be brought under control. Almost 200 countries are being asked for their plans to cut emissions, and it could lead to major changes to our everyday lives.