Prince William has vowed to honour his “much-missed grandmother”, Queen Elizabeth, through his environmental work. The Prince of Wales has given his first speech since the monarch died last month, and in his address to the United for Wildlife Global Summit, he reaffirmed his commitment to the “war” against the illegal wildlife trade while reflecting on the influence his grandparents and father, King Charles, have had on his charitable efforts. He said: “Our natural world is one of our greatest assets. It is a lesson I learnt from a young age, from my father and grandfather, both committed natu…