In the 19th century, providing anything like the modern - day levels of welfare would be considered extremely left wing, but that's now the centre ground. (politics.stackexchange.com)
The long - term picture was still the same — global temperature remaining at present - day levels for centuries — but the short - term response was different. (climatesight.org)
These studies assume a gradual increase in CO2 from present - day levels at a rate of about 1 % per year. (usask.ca)