the effects will be felt in the west. more drought that threatens water supplies. drier forests that fuels devastating wildfires. at the new york botanical gardens, flowers are blooming a month early. >> these wasps are just everywhere in this house. >> reporter: in the south, insects are creeping and crawling earlier than normal. >> many insects are fooled into thinking that it is spring. and they hatch out. >> reporter: today, in pass christian, mississippi, they're already spraying for mosquitos. there was no winter frost to kill their eggs. that lack of winter frost is also sending pollen counts skyrocketing, making for an early start to what will be a long and nasty allergy season. >> the warmer winters are going to bring out the pollen. and they're going to make people sicker. >> reporter: what's happening to the climate fits the pattern that scientists have been telling us to expect, as people pump more greenhouse gases into the atmosphere. >> the planet is getting warmer. and it will continue to warm, on average, as we go into the future. >> reporter: that means we're in for more extreme weather. more snowmageddon-type storms and torrential downpours that