New media and environmental consciousness

I need the insight of people familiar with blogging and new media. I'm asking and answering the following two-part question in an essay and would appreciate the insight on the online community:
In what ways, if any, have the changing ways people access and digest news impacted the public's concept of and their engagement with their natural environment? How can journalists complement existing efforts to cover complex environmental challenges -- air or water pollution, for example -- with emerging media-delivery methods?