I'm not sure how Greenland got its name, but the climate hasn't changed that much in 1000 years. Here is some ice core data from Greenland going back to 1800BC

I'm not sure how Greenland got its name, but the climate hasn't changed that much in 1000 years. Here is some ice core data from Greenland going back to 1800BC: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/gisp/dye3/dye3-1yr.txt