over more i'm joined tonight by latif from the helmholtz center for ocean research in the german city of kiel mr latif has written multiple books he's an authority on climate change it's good to have you on the program these 11000 scientists are are warning us that we will suffer if we don't change and they're saying that we have to change the way we think about growth when it comes to population when it come come through our economies how realistic do you think it is can that paradigm change take place yes absolutely and this is not really a new message we know all 70 decades that if we continue on that posse be produce mol mol greenhouse gases and emit them into the atmosphere dead the planet with coal in level. which we then to resecure ecosystems humorously endangered as one example of its weapons would be possible that all coral reefs all across the reefs die by 2030 if we don't cut c o 2 emissions come to that emissions immediately mr wise if you do you and other climate scientists you know you've been saying this for many years and i remember the 1st time i talked with he was 1