Global net-zero emissions are reached when greenhouse gas emissions and removals due to human activities are in balance. Net-zero emissions is often shortened to net zero. Once global net zero is achieved, further global warming is expected to stop.
Emissions can refer to all greenhouse gases or only to carbon dioxide (CO2). Reaching net zero is necessary to stop further global warming. It requires deep cuts in emissions, for example by shifting from fossil fuels to sustainable energy, improving energy efficiency and halting deforestation. A small remaining fraction of emissions can then be offset using carbon dioxide removal.