BIOB50H3 Lecture Notes - Lecture 25: Denitrification, Sulfur, Bird Migration
Document Summary
Dust storms seemed to be associated with long droughts. Dust when carried up into the atmosphere carries soil particles containing nutrients. Thus the dust storms create a scenario where soil is redistributed thus causing ecological change. Humans are constantly increasing the physical and chemical environment at a global scale which has fostered great awareness over the last few decades. Emission of dust, greenhouse gases and pollutants into the atmosphere have caused a great deal of ecological issues such as climate change, acid precipitation, eutrophication and loss of stratospheric ozone. Focuses on the cycling of carbon, nitrogen, phosphorus and sulfur at the global scale. These chemicals are both essential for the environment but also have roles as pollutants in certain contexts. For example, carbon is fixed by plants for photosynthesis but carbon in the atmosphere is known to be a potent greenhouse gas.
