what's the environmental priority for the next 40 years?

I saw this article in the Guardian (which led me to Joe Royle's own page here) but her synopsis and the following video capture it all.

What should be the top environmental priority for the next 40 years?

With every breath we take and drop of water we drink we are connected to the ocean. Seventy two percent of our planet is ocean. The ocean drives global weather systems, absorbs the heat generated from our addiction to burning fossil fuels and provides the main source of protein for over a quarter of the world's population.   We live on a blue planet. The ocean breathes for the planet, with most photosynthesis occurring on the sea surface more than anywhere else. The health of future generations is dependent on the health of our ocean. However, silently and out of sight, the deep blue is suffering from our take-take relationship. We are getting dangerously close to the sea reaching its capacity to act as the planet's largest carbon sink. Depletion of the oceans fisheries, toxic contamination of the sea by industrial runoff and plastic pollution and acidification pose great threats to the health of the world's population.   The oceans are clearly of critical importance in providing energy, foodand economical security and drinking water. The blue planet teaches us about love, beauty, respect, sensuality and mystery. The ocean fuels our curiosity, imagination, well being and gives us a sense of clarity, meaning and purpose – the liquid planet is the greatest teacher. Would we get the same feeling of peace looking across a lifeless ocean?