Plastic bags are bad and for the most part unnecessary.

We're in a giant car heading towards a brick wall and everyone's arguing over where they're going to sit.

We can't blame children for occupying themselves with Facebook rather than playing in the mud. Our society doesn't put a priority on connecting with nature. In fact, too often we tell them it's dirty and dangerous.

But human borders mean nothing to air, water, windblown soil or seeds or migrating fish, birds or mammals.

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.

In the environmental movement, every time you lose a battle it's for good, but our victories always seem to be temporary and we keep fighting them over and over again.

I can't imagine anything more important than air, water, soil, energy and biodiversity. These are the things that keep us alive.