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Land Use and Carbon Dioxide
Recently, I posted the Hawaii record that showed that carbon dioxide has been increasing for the last several decades. To make the plot consistent with the global temperature plot, I showed only annual...
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Looking at the fall colors in a different way
[This blog reflects the help of many friends and colleagues. The story of how it developed shows how science research often works. The idea for this blog came from Professor Peter Blanken of the...
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Watersheds Part 3
On the surface, we have something similar called “watersheds.” If the water isn’t soaking into the ground, hills act like our roofs, and the water flows on the surface until it hits a stream or river....
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Puddles and Soil Temperature, Part 4: Cool soil in the summertime
During the summer, abundant sunshine during the long days heats up the ground near the surface. I’ve seen surface temperatures on dry ground up to 50°C in the south-central Great Plains of the United...
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Land Use: How Important for Climate?
According to the most recent report by the Intergovernmental Panel on Climate Change, land use change has a relatively minor impact on the recent rise in global average temperature. Yet, as stressed in...
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Relating Air Temperature to Surface Temperature
As Dr. C wrote during his Surface Temperature Field Campaign, the weather in mid-December was cold in many parts of the United States. At our house here in Boulder, Colorado (Figure 1), this morning’s...
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Trees are in Trouble: Climate Change and Dying Trees
Communities in the Sahel region of Africa depend on trees for firewood, food, building materials, and even medicine. Anecdotal observations in this savannah climate, a transition region to the south...
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Trees in Trouble: What happens after the pine trees die?
This week’s blogger is Emily Robitschek, a proud graduate of Arvada West High School near Denver, Colorado. In this post she reports about her research project that she conducted while she worked in...
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Cloud forests and how trees get water
Most trees obtain water through their massive root systems, but did you know that some trees can absorb water through their leaves as well? This ability is called foliar uptake. Scientists recently...
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Trees in trouble: what affect does tree mortality have on climate change
Through our trees in trouble series, we’ve examined trees in the Sahel zone in Africa and the United States. This problem, climate change and dying trees, has been seen on every continent, the only...
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