You're right, of course, but it's expensive to develop something, and the benefit of doing so will be far in the future. In the meantime, everyone's got to eat today - so off to work we go in a car that burns fossil fuel, live/work in a building that is heated/cooled by energy (partly/mostly depending on where you are) derived from fossil fuel, and so on.
Well ... most of science is like that. What you get in the beginning is a model that has a lot of uncertainty, and as the model gets refined and more data colleged, you get more and more certain.
Oh, parts of the GBR is just fine for sure. Those are the parts that people still go to for snorkeling and scuba diving (That's where Minister Ley went to on her first scuba dive trip, where she claimed that everything is fine). In reality, the GBR spanned an area of over 344,400 square kilometers. Approximately half of that area is in poor/declining health (with mass coral bleaching).
In reality, the GBR spanned an area of over 344,400 square kilometers. Approximately half of that area is in poor/declining health (with mass coral bleaching).