I have been fighting climate change for two decades, and people often ask me how I remain hopeful in the face of extreme weather and grim forecasts. The answer is simple: I see countless solutions spreading across the nation and across the world. But we need more investment.

VW has held a beloved place in American culture. When I graduated from college, many of my friends drove across the country, and most hit the road in a VW van or Bug. Through the years, these cars have represented youth, freedom and quirkiness.

The signs of climate change are visible across the nation, from the drought-stricken fields of Central California to the flooded streets of Michigan. Extreme weather is turning people's lives upside down and costing communities millions of dollars in damaged infrastructure and added health care costs.

I have talked to people across the country struggling in the face of an altered climate. New Jersey homeowners are trying to rebuild after Superstorm Sandy. Miami government officials are trying to plan for rising seas and flooded streets. California farmers are trying to make it through the state's worst drought on record.