redhawk1974

If everything was gathered together and exploded out in a big bang then would it not be possible that at some point in time everything going outward eventually stops expanding outwards and then gets sucked back in and gathers back into one place yet again and then cycle could repeat ? 

  When talking global warming and climate change and all the causes I have a question.  With all the pollution in the air and different types what, if anything, happens to the atmospheres reflection ability of sunlight?   Are the pollutants reflecting in any way, meaning less sunlight or less intense rays reaching the surface or do pollutants magnify the intensity of the rays or is just no effect at all?  Also NASA's ICESat has now showed that 70 percent of the earth is covered by clouds.  Will this change with climate change or stay the same and if changes do happen what would the effects be do to increased or decreased cloud coverage?   

They physical science part is really just 2 classes in Physical science and 4 more higher level math classes.

Hello everyone, I would like some advice and opinions on a question.   I am in school for an environmental geoscience degree.  I have to pick and emphasis and these are my three options.  Ecology, GIS, and Physical Science.   The school recommends Physical Science saying students need it to pursue a Masters.   But I think any of them will allow you to go after a Masters Degree. I think enjoy ecology but I believe the Job market just doesnt exist.  I believe there would be more jobs with a GIS background.  So Should I go GIS  or do Physical science to make sure I can get into a Masters Program?