OK, what's with the down-votes? Down vote isn't for "I disagree", actually make a reasoned argument. Down vote isn't for "you don't share my politics". FWIW,

OK, what's with the down-votes? Down vote isn't for "I disagree", actually make a reasoned argument. Down vote isn't for "you don't share my politics". FWIW, I spend a lot of time in the Sierra Nevada and the Sierra foothills. I can see what is happening right before my eyes. I can see what the Ponderosa Pine on my own property are doing in response to stress. I can see the wildlife migrate through and can only imagine what happens to them as they try to cross a bridge from one wild region to another. I am blessed to be a steward of a parcel of wild land that can host mountain lion and other large fauna. Join me if you want to make a difference. We have islands of wild habitat. That is not an opinion, that is a fact. Wildlife and especially wild plants have a difficult time migrating from one wild island to another. Not opinion, that is an observable, measurable fact. HN has been getting out of hand lately -- getting down voted for making verifiable, factual observations is something that may be the accepted norm on SlashDot, but has no place here.