representatives from around the world will negotiate an agreement to shape the next decade of action. lena barrera is the vice president for international policy for conservation international. she joins us from montreal. thank you so much for being on al jazeera. now, as i mentioned, this conference has been billed as the last chance to save nature. a things really that dia hi, tom, thanks for having me. yeah, things are pretty bad. nature is increase, that there are more than a 1000000 species, that risk of extinction. and that means that humans are in crisis to rate more than 50 percent of the global economy depends on nature. so the longer we wait, that means the more we have to lose and the more it will cost us to recover. so this really is a, you know, a last opportunity for us to agree to finally halt and reverse the lot of nature by 2030, for our own good, as well as that of other species. can you just briefly outline what you're hoping to achieve by the end of this conference? absolutely. so what we'd like to see is an agreement that to halt and reverse nature laws' by 2030. and that need