If we want to move towards a low-polluting, sustainable society, we need to get consumers to think about their purchases.

Doing all we can to combat climate change comes with numerous benefits, from reducing pollution and associated health care costs to strengthening and diversifying the economy by shifting to renewable energy, among other measures.

If all humans disappeared today ,the earth would start improving tomorrow.If all the ants disappeared today ,the earth would start dying tomorrow.

Our beliefs, our values shape the way we look out at the world and the way we treat it. If we believe that we were here, placed here by God, that this - all of this creation is for us, it's for us to go and occupy, dominate and exploit, then we will proceed to do that.

Conserving energy and thus saving money, reducing consumption of unnecessary products and packaging and shifting to a clean-energy economy would likely hurt the bottom line of polluting industries, but would undoubtedly have positive effects for most of us.

The increasing frequency of extreme weather events, droughts and floods is in line with what climate scientists have been predicting for decades - and evidence is mounting that what's happening is more severe than predicted, and will get far worse still if we fail to act.

Many organic practices simply make sense, regardless of what overall agricultural system is used. Far from being a quaint throwback to an earlier time, organic agriculture is proving to be a serious contender in modern farming and a more environmentally sustainable system over the long term.