Non-partisan, independent presentation of climate data. No political ideology, agenda, or financial incentive. Just the data and the trends from published peer-reviewed research, no matter what it shows. We don't cherry pick. Site owner is a Ph.D. geologist who attempts to present the data in as simple a format as possible, so everyone can understand. Choose a subject from the list, or just scroll down. Data is presented in at-a-glance format with minimal analysis. Climate change is much more than just temperatures.
We don't post often, as there is no need to repost the same data over and over. But we do post data from scientists who have boots on the ground and are doing the dirty fieldwork to collect data.
Monday, December 7, 2009
Paleocene-Eocene Thermal Maximum (PETM)
Climate scientists estimate that humans have put 810 gigatons of carbon into the atmosphere to yield a 100ppm increase in carbon dioxide to its current level of 380ppm. The thing about geologic time is understanding the rate and scale of change relative to today. The current rate at which carbon is entering the atmosphere is faster than when it was released into the atmosphere during the PETM. Ecosystems can adapt to changes that occur over a 1,000 year to 20,000 timeframe. And some of the changes you see on the graph below happened over million year time scales. Can Earth's current ecosystems adapt to potential changes on a much shorter time scale, say as little as 100 years? That's one of the questions.