GLOBAL WARMING
Scientists say global warming has already caused rising temperatures and sea levels during the past few decades. Erosion is more prevalent, the Sierra snowpack is melting earlier each year and storms in California have become more severe. Even if moderate steps are taken to curb greenhouse gas emissions contributing to climate change, experts expect the Bay Area to see:
A rise in air temperatures of 2 to 10 degrees by the year 2100 – compared with a 1 degree rise in the last 100 years.
A rise in sea level of 1 to 3 feet by 2100 – compared with a 0.6 foot rise in the past century.
Severe flooding every 10 years.
Stronger El Niños, bringing increased rain to the area.
Extended drought periods that are drier and longer than in the past.
Water shortages caused by the Sierra snowpack declining and runoff occurring earlier in the season.
More extreme urban wildfires.