The ozone, like all other natural variables, varies considerably over short time periods. (drtimball.com)
I understand that idea, I just don't understand how natural variables could have caused 2000 - 2008 to slow the warming. (realclimate.org)
Environmental water is focussed on re-establishing more natural variable river flows, by reconnecting Basin rivers with floodplains and wetlands and creating the right conditions to support healthy populations of native fish. (environment.gov.au)