Global warming is happening now. The planet's temperature is rising. The trend is clear and unmistakable. Every one of the past 40 years has been warmer than the 20th century average. 2016 was the hottest year on record. The 12 warmest years on record have all occurred since 1998.
In this article. Crohn's disease, also known as ileitis or regional enteritis, is a chronic illness. In Crohn's, the intestine, bowel, or other part of the digestive tract becomes inflamed and ulcerated -- marked with sores.
Along with ulcerative colitis, Crohn's disease is part of a group of diseases known as inflammatory bowel disease (IBD). Crohn's disease usually affects the lower part of the small intestine, which is called the ileum. The disease, though, can occur in any part of the gastrointestinal system.