if you aren't worried yet, consider starting now

We can get worried about our projects, our salary, or our romances, but somehow we do not get worried about our specie, and other forms of life on Earth. Dan Gilbert says that it's because things change too slowly with climate: we do not "see" the impact, and because climate change does not have a face, and we LOVE to associate evil with faces.
Truth is, if we do not start acting upon our daily behaviours, we're doomed to kill ourselves, maybe slowly, but we'll sure loose face in this universe.
Forget about Terraforming on Mars, we need Terrapreserving in here !

what a wonderful home

It's mind blowing, it's our home, it's been given to us for free, it does not need maintaining, it offers food, water, shelter, warmth, protection, entertainment and a high degree of stability, considering the universe around us. And yet, we manage to scavenge it, pollute it, create imaginary borders, cover it with ugly landscapes, and sell its produces.
It has survived the most amazing series of catastrophic events, and will overcome us. But will we ?

http://www.youtube.com/homeproject
http://topdocumentaryfilms.com/planet-earth-the-complete-bbc-series/
http://topdocumentaryfilms.com/life/

luckily volcanoes still exist

photo by ovaratli

We're sure very actively trying to destroy ourselves via economic growth, industrial evolution, globalisation, preventive wars, oil rigging, mining, buy&throw-away habits, linear cradle to grave production.
But we can thank nature for having thought of how to cope with our attempts to destroy its wonders. Plate tectonics will save Earth from us, as it saved it from previous settlers, sometimes with a little hand from outer space friends too.
It may get a bit hectic, but floods, tsunamis and large eruptions will settle things down. Some sort of life will surely survive. It's refreshing to think that there will be life after us.

Why do volcanoes erupt?
http://open2.net/mountain/inside_mountain.html

Some informative documentaries:
http://documentaryheaven.com/inside-planet-earth/
http://topdocumentaryfilms.com/the-core/
http://documentaryheaven.com/supervolcanoes/
http://topdocumentaryfilms.com/how-earth-made-us/
http://topdocumentaryfilms.com/earth-story/
http://topdocumentaryfilms.com/time-machine/
Earth, power of the planet: volcano (also: atmosphere, ice, oceans and rare earth)

And a more extensive, although a bit dramatized, series:
http://topdocumentaryfilms.com/how-the-earth-was-made-season-1/
http://topdocumentaryfilms.com/how-the-earth-was-made-season-2/

Or an intire course on geology
http://www.archive.org/details/elements_geology_1010_librivox

And the history of our planet, and of how life survived and then thrived
http://topdocumentaryfilms.com/earth-making-of-a-planet/
http://topdocumentaryfilms.com/david-attenboroughs-first-life/