I've had a number of discussions on Twitter today with people concerned about global warming. Regardless of what you may think or know about this issue, I want to state the following bit of rock solid science:
The earth-ocean-atmosphere system will never be in equilibrium. It has never been in equilibrium and it will not be in the future.
There are too many internal and external forcings. For example, solar flares and volcanoes are two completely natural phenomena that drive changes. Humans add greenhouse gases and create land use changes (to name two) that destabilize the system.
The idea (expressed twice today) that we will go into some sort of equilibrium if we reduce greenhouse gas is scientifically incorrect.