"Sustainable" has such a comprehensive meaning.
Among other means it involves:
- environment protection, including people, flora-green plants and fauna-animals, extinction of species;
- water conservation and reservoirs protection;
- air & environmental quality (indoor and outdoor);
- land preservation, including land use, habitat destruction, and intensive farming;
- pollution prevention (including air, water, soil and land, light, noise, thermal, radioactive, littering);
- ozone depletion stopping;
- GHG-greenhouse gas emissions decrease that leads to global warming, slowdown of thermohaline circulation - large-scale ocean circulation or global dimming - reduction of direct irradiance at the Earth's surface;
- land preservation that covers urban sprawl, habitat destruction and fragmentation, desertification, soil erosion and contamination;
- ocean protection against acidification, deoxygenation, dead zones, and sea level rise;
- energy efficiency and conservation;
- resources preservation (energy resources, such oil and other fossil fuels, but also fishing: overfishing, cyanide fishing, shark finning, whaling; logging: clear-cutting & deforestation; and mining);
- toxins production elimination (dioxin, toxic heavy metals, toxic waste, herbicides, pesticides, CFCs-chlorofluorocarbons, DDT-dichlorodiphenyltrichloroethane pesticide, PCBs-polychlorinated biphenyls);
- waste management (landfill, litter, marine debris, medical waste, leachate, incineration, e-waste, including computers, phones &TVs, hazardous waste, such batteries, paints, motor oils, pesticides, aerosols, refrigerants, thermometers and fluorescent lighting);
- recycling and reusing;
- environmental health that involve airborne diseases, like asthma, chemical poisoning, radiation, sick building syndrome, and all kind of medical conditions;
- other human activities that encompass genetic engineering, nuclear issues, nanotechnology - nanopollution & nanotoxicology, and overpopulation.
The list can go on and on with more details.
Let's not forget also about our consumerism, over-consumption and obsolescence.
With all the green trends nowadays I am sure we'll throw most of the non-green products right away, instead of trying to utilize it as far as possible, since we already have it. One of the eye-opening, simply said, and informative stories can be watched at http://www.storyofstuff.com
It took us years and years to get to the point we are now and we are unable to fix everything at once. That's why we all need to be cautious, aware, act with common sense and see a big (or even bigger) picture in order to sustain and survive.