The rules Obama put in place was that projects needed to be constructed taking into account effects of climate change INCLUDING rising sea levels on coastlines. Trump rescinded them and said doing so meant that the projects could be built quickly without having rules slow them down. How any of this will impact anything I do not know. But we shall find out. Sometimes you throw the baby out with the bathwater. This may be one of those times. That's not so good if you are pro-baby. :(