I don't have the details of how and at what speed the $420 million will be spent, but I can assure you that some of the money will start being spent very soon. We need to act as rapidly as possible.
As someone who comes from the environmental sector, one thing we really don't like is when there's a lot of money, and then all of a sudden there's no more money. You want to have a sustained amount of money so that you can continue to work to support your scientists and the organizations on the ground that are doing the work.
It's important that there is an investment initially, but you want to sustain it over time.