Nations must collectively commit to cutting 42% off annual greenhouse gas emissions by 2030 and 57% by 2035 in the next round of Nationally Determined Contributions (NDCs)—and back this up with rapid action—or the Paris Agreement’s 1.5°C goal will be gone within a few years, according to a new UN Environment Program (UNEP) report. Nations must collectively commit to cutting 42% off annual greenhouse gas emissions by 2030 and 57% by 2035 in the next round of Nationally Determined Contributions (NDCs)—and back this up with rapid action—or the Paris Agreement’s 1.5°C goal will be gone within a few years, according to a new UN Environment Program (UNEP) report. Environment Phys.org – latest science and technology news stories