The overall ultimate goal is to ensure that by 2100 the average annual temperature on Earth does not rise by more than 2 ° C compared with the pre-industrial era (1850-1900s).
ເປົ້າ ຫມາຍ ສຸດທ້າຍໂດຍລວມແມ່ນເພື່ອຮັບປະກັນວ່າຮອດປີ 2100 ອຸນຫະພູມສະເລ່ຍຕໍ່ໂລກບໍ່ເພີ່ມຂື້ນຫຼາຍກ່ວາ 2 ° C ຖ້າທຽບໃສ່ຕົວຊີ້ວັດຂອງຍຸກກ່ອນອຸດສາຫະ ກໍາ (1850-1900).