The Paris Agreement defines net zero as achieving “a balance between anthropogenic emissions by sources and removals by sinks of greenhouse gases”. The IPCC’s report released in August 2021 stated that…“emissions of greenhouse gases from human activities are responsible for approximately 1.1°C of warming since 1850-1900… unless there are immediate, rapid and large-scale reductions in greenhouse gas emissions, limiting warming to close to 1.5°C or even 2°C will be beyond reach”.