No that headline is not a joke. The IPCC cited a guide for Antarctica tour operators on decontaminating boots and clothing. Here it is.
The reference is in the Fourth Assessment Report, Working Group II, section 15.7.2 Economic activity and sustainability in the Antarctic. The claim is:
“The multiple stresses of climate change and increasing human activity on the Antarctic Peninsula represent a clear vulnerability (see Section 15.6.3), and have necessitated the implementation of stringent clothing decontamination guidelines for tourist landings on the Antarctic Peninsula (IAATO, 2005).”
This is referenced as:
IAATO, 2005: Update on boot and clothing decontamination guidelines and the introduction and detection of diseases in Antarctic wildlife: IAATO’s perspective. Paper submitted by the International Association of Antarctica Tour Operators (IAATO) to the Antarctic Treaty Consultative Meeting (ATCM) XXVIII. IAATO, 10 pp. http://www.iaato.org/info.html.
So the IPCC cites a boot and clothing cleaning guide as evidence that the “multiple stresses of climate change…have necessitated the implementation of stringent clothing decontamination guidelines”. That might be laughable in and of itself, but the problem is the article doesn’t even mention climate change. Once. Nothing at all about global warming, or temperature increase. Nothing!