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Berkeley Lab Climate Scientist: More Extreme Heat and Drought in Coming Decades

By Guest PostMay 29, 2014Environmentatmosphere, berkeley lab, britisch premier, climate scientist, CO2, emission scenario, global scale, ipcc, michael wehner, muammar al gaddafi, scenarios, temperature increase, the apprentice, united states

Lab climate expert is a lead author on the National Climate Assessment.

By the end of this century climate change will result in more frequent and more extreme heat, more drought, and fewer extremes in cold weather in the United States. Average high temperatures could climb as much as 10 or more degrees Fahrenheit in some parts of the country. These are some of the projections made by Lawrence Berkeley National Laboratory (Berkeley Lab) climate scientist Michael Wehner and his co-authors on the National Climate Assessment (NCA). (more…)

Tropical Forest Diversity Increased During Ancient Global Warming Event

By Guest PostNovember 18, 20101 commentEnvironment, Nature, Scienceangiosperm pollen, atmospheric carbon dioxide, carlos jaramillo, century, Colombia, eldredge bermingham, global warming, joe wright, outcrops, paleocene-eocene thermal maximum, panama, rainforests, scanning electron microscopy image, taxa, temperature increase, tropical areas, Venezuela

The steamiest places on the planet are getting warmer. Conservative estimates suggest that tropical areas can expect temperature increases of 3 degrees Celsius by the end of this century. Does global warming spell doom for rainforests? Maybe not. Carlos Jaramillo, staff scientist at the Smithsonian Tropical Research Institute, and colleagues report in the journal Science that nearly 60 million years ago rainforests prospered at temperatures that were 3-5 degrees higher and at atmospheric carbon dioxide levels 2.5 times today’s levels.

About the image: This is a scanning electron microscopy image of characteristic angiosperm pollen taxa from the Paleocene-Eocene Thermal Maximum. Image credit: Francy Carvajal, Smithsonian Tropical Research Institute (more…)

Global Warming Could Spell Disaster for Corn Crops

By Guest PostSeptember 6, 20101 commentEconomy, Environmentbhawan singh, christopher bryant, corn, crop, el niño, fertilizing impact of CO2, global warming, greenhouse gases, kenel delusca, professor, quebec, rainfall increase, southern united states, temperature increase, université de montréal

If corn producers continue using the same cultivars, plants selected for their desirable characteristics, global warming could cause production to drop from 1.3 to 10 percent between 2010 and 2039.

(more…)

Tag Archives: temperature increase

Berkeley Lab Climate Scientist: More Extreme Heat and Drought in Coming Decades

Tropical Forest Diversity Increased During Ancient Global Warming Event

Global Warming Could Spell Disaster for Corn Crops