That's a central part of philosophy, of ethics. What do I owe to strangers? What do I owe to my family? What is it to live a good life? Those are questions which we face as individuals.

Sometimes we know the best thing to do, but fail to do it. New year's resolutions are often like that. We make resolutions because we know it would be better for us to lose weight, or get fit, or spend more time with our children. The problem is that a resolution is generally easier to break than it is to keep.

When diamonds' role in fuelling violent conflict in Africa gained worldwide attention, the diamond industry established the Kimberley process in order to keep ""blood diamonds"" out of international trade.

I'm not overly alarmist about it, but I do think there are some worrying signs, like the growing accumulation of wealth by a very small proportion of the population, plus elections in the US are much more dominated by money than anywhere else calling itself a democracy.

British Columbia's got one of the most ambitious climate change plans in North America.

The growth that we want is one that brings real benefits to the people, raises quality and efficiency of development, and contributes to energy conservation and environmental protection.

More than ever before, there is a global understanding that long-term social, economic, and environmental development would be impossible without healthy families, communities, and countries.

It's shocking to think about how little the travel industry cares about sustainability - and it's the basis of their business!