50 years ago it was "now or never" to prevent any major effects from climate change. then it was "now or never" to keep warming under 1C, then to prevent ocean

50 years ago it was "now or never" to prevent any major effects from climate change. then it was "now or never" to keep warming under 1C, then to prevent ocean acidification, then to keep warming under 2C, then to keep the ice caps from melting, then to prevent a runaway effect. it's like a fire alarm going off. if you act early, you can smother it. otherwise you need an extinguisher, then to call the fire department, then at least to get you and your kids to safety. it's always now or never to save what you can, it's just that what you can save diminishes.