Sir,
The central truth of ecology is that everything in nature is related to everything else. Often we do not realise just how much we depend on our environment for our very survival and wellbeing.
Blue Planet II has so clearly shown us all that we influence our seas around us whether by industrial or domestic effluent pollution, overfishing and methods of fishing, through creating climate change by use of carbon fuels, which is raising water temperatures, increasing ocean acidity and creating storm surges, by pesticide use and by our own individual carbon footprint, be it by car use, flying and use of plastics.