UNFCCC

Paris deal now likely to take effect before end of 2017, as UN invites countries to special ratification event in September

For many green business leaders and policy makers the mood remains positive despite the turmoil unleashed by the vote to leave the EU

EU Covenant of Mayors and the UN-backed Compact of Mayors merge to form the new Global Covenant of Mayors for Climate and Energy

Norwegian ambassador deposits instrument of ratification to UN Secretariat, leapfrogging France in race to formally ratify Agreement

UN-appointed "climate champions" Laurence Tubiana and Hakima El Haite call on governments and businesses to deliver low-emission development strategies for 2050

Appointment of Mexican diplomat to replace outgoing climate chief Christiana Figueres has been officially approved by the Bureau of the UNFCCC

UN conference will see delegates address next steps towards enacting the Paris Agreement as soon as possible

Leading Mexican diplomat put forward as prospective successor to out-going UNFCCC boss Christiana Figueres, as new report highlights the need for bolder national climate action plans

Record-breaking number of nations sign Paris Agreement in New York, hailing treaty as a new chapter in the fight against climate change

More than 100 leading companies issue statement of support for the treaty, which the UN labels a 'critical next step' towards a sustainable future