We can blame man for the altered composition of Eastern forests, but not climate change, according to a researcher in Penn State's College of Agricultural Sciences. Forests in the Eastern United States remain in a state of "disequilibrium" stemming from the clear-cutting and large-scale burning that occurred in the>

America is back at mid-1990s levels of carbon dioxide emissions. Some of that is due to the ongoing recession, of course, but a large chunk is due to the switch from the dirty coal plants that ballooned after America stopped producing emissions-free nuclear energy to natural gas.While energy overall is back at early>

Ozone is a known pollutant at low levels in the earth’s atmosphere, which causes harmful effects on the respiratory system and sensitive plants.    Ozone forms as hydrocarbons and nitrogen oxides emitted into the air react with sunlight. Two of the largest emitters of these pollutants are vehicles and>

Senckenberg scientist Ingmar Werneburg, together with an international team, re-examined the An examination of the skull structure of Tyrannosaurus rex using “anatomical network analysis” found that the carnivorous dinosaur had an extremely flexible skull structure. Tyrannosaurus rex – the “King of the Tyrant>

Most science fiction and news stories describe Mars terraforming as a long term but simple process. You warm up the planet first, with greenhouse gases, giant mirrors, impacting comets or some such. You land humans on the surface right away and they introduce lifeforms designed to live on Mars. Over a period of a>

A major study has shed new light on the dim layer of the ocean called the "twilight zone"—where mysterious processes affect the ocean's ability to absorb and store carbon dioxide accumulating in our atmosphere. The results of two international research expeditions show that carbon dioxide — taken up by photosynthesizing>