http://www.cnn.com/2015/01/14/opinion/co2-crisis-griffin/

I know CNN isn't my favorite either.   But in support of the young people, there are some, including a Pulitzer Prize winner, who do believe the kids generation could face disaster up to and including extinction.   

Other's think that humans' are adaptive enough to at least survive.   http://www.scientificamerican.com/article/geoengineering-to-save-the-world-from-global-warming/

Other's still, maybe the majority aren't convinced it's that big a deal.

Personally I am worried for my daughters and their children.   It's odd to think of the Rockies with no pine trees or, Southern Oregon and California as grassland savannah.    Human's may not be extinct, but our memories of nature will not be our children's.