To make the public aware about the increasing rate of global warming-
we can write articles about it in newspapers;
we can convey it through news at news channels and tell people about the harmful and dangerous consequences about global warming;
we can use other media like newspapers,internet blogs,pop-ups,etc;
we can convey messages through street plays showing people wearing oxugen masks due to lack of oxygen in the atmosphere,etc.
hope i helped u:)