Personalized Stop Global Warming T-Shirt. Stop global warming, make ice cubes is a humorous take on a serious subject. Keep the topic alive with this contradictory design. Unique gift for the environmentally aware on birthdays and holidays Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.