let s turn to canada now where nearly 200 countries have meeting to discuss how to halt the destruction of global biodiversity by the end of the decade. these pictures are from the opening session of the cop 15 summit a few hours ago. but even before official proceedings began, un secretary general, antonio guterres had this blunt warning. here he is speaking yesterday. with our bottomless appetite for unchecked and unequal economic growth. humanity has become a weapon of mass extinction. we are treating nature like a toilet. and ultimately we are committing suicide by proxy. you may remember that last month we were talking about the the un s cop 27 climate summit in sharm el sheik in egypt. world leaders, industry figures and climate campaigners discussed some of the key issues around global warming and climate change. the focus in montreal is more specific, on how to slow the destruction of nature.