The phrase "negative ramifications" means the negative consequences or effects that can happen because of a certain action or decision. Full definition
But, most climate scientists are NOT telling us that global warming, or even substantial negative ramifications of global warming, are NOT likely to happen. (dotearth.blogs.nytimes.com)
But they were so self - assured, the error had no lasting negative ramifications for their careers at the firm. (abajournal.com)
The bank continues to research cryptocurrencies, but it has decided that having its own such currency could have negative ramifications on traditional banks. (cryptotimes.news)