Of course climate is changing. It has always changed. !2,000 years ago-a mere eye blink- in geologic time. Where I am sitting now, when a few hours from now it will be 90 degrees, there was 1 mile thick ice. Why is it gone? 3 words. IT GOT WARMER. Current levels of atmospheric levels-400ppm- of CO2, are amoung the lowest levels to have existed. in the Dinosaur era the CO2 levels were 4000PPM. Without propper CO2 levels EVERYTHING on the surface of the planet dies. All life depends upon one and only one process-photosynthesis. Sunlight + CO2+ Trace minerals = 02. That's it. Thats all. So higher that 400PPM may actually be a very good thing. More CO2 means more forrestation and faster regrowth of crops=more food. There have been (mostly absurd) predictions of the world not being able to feed the worlds growing population, higher CO2 levels may avoid that problem. P.S. We have entered an era of no sun spots- A Maunder Minimum. the last time this occured was dujring the "Little Ice Age" fromm about 1300 to 1800. So if this continues it may get a lot colder. There may come a time when our distant progeny will long for a warmer climate.