The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (‘IPCC’) of the United Nations Framework Convention on Climate Change (‘UNFCCC’), to which the Union is party [3], stated that, on the basis of existing scientific data, developed countries would need to reduce greenhouse gas emissions by 80 % to 95 % below 1990 levels by 2050 to limit global climate change to a temperature increase of 2 °C and thus prevent undesirable climate effects.
Sa Cheathrú Tuarascáil Mheasúnaithe ón bPainéal Idir-Rialtasach ar an Athrú Aeráide (“IPCC”) de chuid Chreat-Choinbhinsiún na Náisiún Aontaithe ar an Athrú Aeráide (“UNFCCC”), ar páirtí é an tAontas ann [3], sonraíodh, ar bhonn sonraí eolaíocha atá ann cheana, go mbeadh ar thíortha forbartha astaíochtaí gás ceaptha teasa a laghdú 80 % go 95 % faoi bhun leibhéil 1990 faoi 2050 chun teorainn a chur leis an athrú aeráide domhanda go dtí ardú teochta 2 °C agus tionchar aeráide neamh-inmhianaithe a chosc dá bharr.