Bringing back the Beaver in the USA

[Catherine]

Many parts of the USA were in a mess ecologically because keystone species had been removed. In particular, the beaver were gone. 
In 1995 Beavers were reintroduced in some places. The change was amazing. The video in this article shows the transformation.

https://www.msn.com/en-ca/autos/news/the...d01&ei=132

To restore damaged ecosystems we need to bring back the creatures that are missing from it.  In particular Beavers restore the land. They control water flow. 
Land around Beaver ponds is saturated and survives wildfires. When streams have Beavers controlling the flow, flooding is prevented.
The Beavers even help the salmon. The fish can jump the dams and make it up stream. The water behind the dams is a good spawning area.

Right now the air where I am is very bad because of wildfire smoke. Large areas of my country are on fire.
Could Beaver have helped. Very likely. Also restoring other keystone species like Buffalo. The ecosystem evolved to survive and be stable.
When we unbalance ecosystems we get unstable situations like wildfires. If we want to stop this we need to restore things. 
Bring back the Beaver and see what happens.