What signs of 'global warming' have you witnessed for yourself?

Wildfires in California are much, much larger and more destructive than they ever used to be. Wildfires are natural in California and we've always had them, but there are more than ever before and they are bigger, hotter, and more destructive. Of the 10 largest wildfires in California's history, only 2 were in the 20th century, the rest have all been in the last 20 years. Increased frequency of drought makes them even worse and has led to millions of tree deaths, trees that have been standing for decades or centuries. The fire season used to last from June to October; it is now virtually year-round, with huge fires occurring as late as December. My parents have lived in the Napa Valley for a long time and it's only recently that we've had to evacuate our home every freakin' year because of fires. The changed climate is very obvious to me.