Greta Thunberg, the Swedish teenager who inspires action to tackle climate change, has become more recognisable than most presidents. She has the clarity of mind to see our endangered world as if through the eyes of a clear-thinking alien, uncluttered by economics, or ego, birthplace or age. Greta represents youth, a section of our population often forgotten, but one which - in the absence of any other front-runner - has the potential to lead us all towards more sensible policies for a sustainable future.

Sustainable change is a broad church - not always about discarding charcoal and growing trees - it comes in a thousand and one shapes and sizes: people for example. One of the most challenging issues of this 21 st Century is just how we relate to each other; how haves relate to have-nots, historied citizens to traumatized migrants, rich to poor. Do we connect as part of the same tribe, or do we seek out divisions for our own benefit?

Brexit Britain has turned the clock back 50 years to resume preferential trade links with Australia. The deal involves tariff reductions on commodities such as cars and wine, which are destined to travel 15,000 kilometres in opposite directions around our planet. Australia appears to gain more from the agreement, signed after Britain watered down its climate change requirements.

COP26 - the latest version of the annual climate-fest - finished on a decidedly downbeat note ... especially for countries like Bhutan: small, poor, and already suffering the ravages of climate change!

Only a few Kenyans would know that when G7 leaders dined with Queen Elizabeth at The Eden Project, they were surrounded by one of the 21st Century’s most important adverts for sustainable change. Eden was an ambitious millennial initiative which focused on reclamation of an enormous, disused quarry

Sustainable change is all about doing things today, so people can live better tomorrow. And by people, we mean children: my children, your children! Sustainable Change is often termed sustainable development. But these are two words in conflict: development infers growth or expansion, sustainable implies smaller scale and inbuilt harmony – a healthier balance – for this planet we live on.

Confronting the climate crisis is a major leap for most people; they have other things to think about … like food on the table and electricity bills. I started to reflect on this when a passenger went to throw a plastic bottle out of the car. “No, don’t do that,” I said. “I can use it again at home.” “OK, if that’s what you want,” came the blank reply ...

Our Kenyan coast is a tropical paradise stained by the scourge of plastics, brought in by tide and discarded by tourists: a local reflection of a global epidemic. This plastic menace has grown over recent decades to become the environmental hazard we see today. It reflects an alarming increase in single-use plastics - bottles, containers, cups and straws - with little planning for collection and recycling ....