immediate decline in the resulting radiative forcing. Radiative forcing is the change in the Earth's energy balance that they cause. However, these potent but short-lived gases will drive temperatures higher in the short term. This could possibly push the rise in temperature past the 1.5 °C threshold much earlier.A comprehensive net-zero emissions target would include all greenhouse gases.

Some targets aim to reach net-zero emissions only for carbon dioxide. Others aim to reach net-zero