planet before like warming at this specific rate. we think it is very well tied to increasing carbon dioxide in the atmosphere since the late 1800s caused by humans. one of the best places to look for information on this, go to climate.nasa.gov and see the graphs for yourself that show the correlation between these things. remember it is not a just the last ten years or last few years now, we have satellite records that go back now 50 years. we combine that with weather stations around the world, we have a good record going back to the late 1880s that tells us all about how the planet is warming up. on top of that, too, it is not just evidence from that. we have evidence from the geologic record, sediment numbers from the ocean floor. when you take this information and talk about this increase, .35 degrees per decade, what does that tell us about what eventually is going to happen? can this be reversed?