The miracle of hearing has come to a tiny fly that couldn’t possibly find its prey without a totally unique method of locating crickets. Business needs to start creating a packaged system that can economically help our deaf and hard-of-hearing to hear the real world again.

The disgraceful lack of control and study of the Alberta tar sands exploitation is leading to people's health problems. As the US considers its imports from Canada, it would be wise to consider just how neglectful the Canadians have been to their residents, air quality, water purity and forests.

The study of human relatives goes far beyond the simian primates, but this species is the smallest and probably the most unique of all our closer relatives. It’s also American, which brings genomics into the New World for the first time as far as monkeys are concerned.

How prepared is the earth for disasters in both advanced urban and primitive wilderness areas of any country? Do we need to prepare people or will the present situation be allowed to continue, no matter how ridiculous it appears?

When we grow, the incredible result is often poverty and pollution. The corrections needed in our world mean we have to stop behaving as if we have the resources of 5 plants or even just 3. This is only "One Earth" and we must adjust accordingly - and immediately.

Are you interested in ''how cities can contribute to the advancement of sustainable development and address issues including water, energy and waste?'' Think you could write 500-600 words on the topic?