Anyone who's ever lived in a home with a leaky basement knows that during a rainstorm, preventing a flood is the first order of business. Too often, though, it's easy to put off until later the investments necessary to protect your home from future storms that are sure to come. The same is true with climate change. Right now, the planet is awash in a rising flood of carbon dioxide that threatens to forever change our marine, forest, grassland, desert, and mountain ecosystems. We see early signs of these changes in national parks throughout the country -- the canaries in …