Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
I've always perceived population as the primary impacter on the environment.
But just because it is the primary impacter, does not mean that the solution lies there.
The better news was that, as a byproduct of the impacter watch, the IAA was getting detailed data on the composition of the larger asteroids.
Although the Moon is very dry on the whole, the spot where the LCROSS impacter hit was chosen for a high concentration of water ice.
The LCROSS impacter was targeted at the Cabeus crater which was chosen as having a high concentration of water for the Moon.