Morality itself (in the broad scientific - philosophical sense of the term) is most foundationally «about» the sustainable and healthy survival of the human species along with plentiful biological diversity along with the sustainable health of our home, planet Earth, all accomplished in a way that respects human equality (in important senses) and embraces a living and somewhat fragile planet. (dotearth.blogs.nytimes.com)
For a puny, fragile planet like Earth, which is 0.000003 the mass of the sun, the center of gravity resides so close to the center of the sun that we don't even notice the slightly off - kilter orbit. (businessinsider.com)
Some can be completed within a single class period and others require more time, but all are sure to get your students — and you — thinking about what can be done to preserve our increasingly fragile planet. (edutopia.org)