The climate emergency is the most critical challenge of our times. In recent years, the unprecedented heatwaves and wildfires, heavy rains and floods, dying sea-life, melting polar ice and collapsing ecosystems provide painful reminders of just how far into the danger zone we have already plunged. According to research by the Intergovernmental Panel on Climate Change (IPCC), unless there are immediate, rapid and large-scale reductions in greenhouse gas (GHG) emissions, limiting warming to close to 1.5°C or even 2°C will be beyond reach. There is a global consensus to address global warming and comply with the Paris Climate Agreement, and keeping global emissions within 1.5°C is an irreversible imperative.