Global temperatures have been declining for 2000 years when you don't use the fraudulent data used by the Intergovernmental Panel on Climate Change (IPCC).
Townhall does not allow you to post links, so I am using Google instead.
Google "The Tree Ring Data Scandal"
Google "New tree ring study shows 2000 years of cooling"
Google "Extreme weather is an integral part of the Earth’s climate"