The mission of Project Drawdown is to help the world reach “Drawdown”— the point in the future when levels of greenhouse gases in the atmosphere stop climbing and start to steadily decline, thereby stopping catastrophic climate change — as quickly, safely, and equitably as possible.
In some parts of the model (particularly fuel consumption and emissions) the scenario inputs are in the form "how much more efficient is the solution than conventional technology?". The problem with this phrasing is that it couples the two together --- if someone updates the estimates of the conventional technology, the solution is automatically altered as well, which could be inappropriate. (Not the most important concern, but just something to think about.)
In some parts of the model (particularly fuel consumption and emissions) the scenario inputs are in the form "how much more efficient is the solution than conventional technology?". The problem with this phrasing is that it couples the two together --- if someone updates the estimates of the conventional technology, the solution is automatically altered as well, which could be inappropriate. (Not the most important concern, but just something to think about.)