The temperature of the planet is affected by the emissions and concentrations of greenhouse gases in the atmosphere. The amount of greenhouse gases that goes back into the oceans must also be considered. We need a target that measures all emissions, meaning net emissions. There are a number of possible ways of establishing such a target.
Because of lesson 2 in our report entitled “lessons learned from Canada's record on climate change”, I believe that Canada has begun to realize that a ceiling for emissions must be established because we have set net‑zero as our target. So net emissions must be brought to zero in 2050 and reduced to 45% as of 2030. We must put a cap on our net emissions if we are to achieve our targets for 2030 and 2050.