Some helpful reminders on where we are up to on climate change, and the significance (and implications) of the various limits to ensure a safe and secure atmosphere; ‘safe’ to say we are already pushing the boat out to far, and we can be ‘secure’ in the knowledge that this will have negative consequences for all of the created order…as many experts are increasingly acknowledging, there are major moral issues at stake here!
Climate change is the archetypal planetary boundary. It’s a global problem with clear tipping points, and more and more people know what those are. Of all nine boundaries, it’s the only one that is popularly understood.
And so it should be, because it’s the one with the biggest consequences if we fail to manage it. If the climate slips out of control, then the land use, fresh water, ocean acidification and biodiversity boundaries go with it. The world would be a very different and far more hostile place.
As we know, carbon dioxide (CO2) and other gases trap heat within the earth’s atmosphere, creating a greenhouse effect that warms the planet. Joseph Fourier identified the greenhouse effect in 1827, so this is not a new idea. CO2 is present in nature and is critical to plant growth, but human activity, and particularly the burning of fossil fuels, has created…
View original post 694 more words