Climate change from the burning of fossil fuels, and the conversion of land for forestry and agriculture causes lakes to freeze and thaw, temperatures will continue to rise, frost-free season (and growing season) will lengthen, changes in precipitation patterns, more droughts and heat waves, hurricanes will become stronger and more intense, sea level will rise 1-4 feet by 2100, arctic likely to become ice-free. To get involved with helping, turn off lights when not using, ask your utility to switch your account to clean, renewable power, such as from wind farms. If it doesn’t offer this option yet, ask it to, etc.