Prince Charles Admits He's Worried About Meghan's Unborn Child

"I am about to have another grandchild actually. I suspect quite a few of you may too have grandchildren or will do soon. It does seem to me insanity if we are going to bequeath this completely polluted, damaged and destroyed world to them. All grandchildren deserve a better future," he said in his speech.

The royal's comments were part of a wider conversation on plastic pollution and how governments are working to reduce the amount of contamination across the globe. On the topic of recycling, he added: "It is becoming evident that not following such an approach has disastrous consequences, as is witnessed by the fact that 8 million tons of plastic enter the ocean every year, that soon there will be one ton of plastic for every three tons of fish in the sea, and that the dead zones in the ocean, now numbering over 400, are continuing to grow."

Charles has been a longtime supporter of green living and previously insisted plastic was becoming a huge danger in terms of waste pollution in the seas.

"As many of you know so well, the eight million tons of plastic that enter the sea every year – through our own doing I might add – is now almost ubiquitous," he said. "As the Prime Minister said, if all the plastic that we have produced since the 1950s that has ended up in the ocean is still with us in one form or another, so that wherever you swim there are particles of plastic near you and we are very close to reaching the point when whatever wild-caught fish you eat will contain plastic. Plastic is indeed now on the menu!"