Just in time for the upcoming celebration of Earth Day and the pending release of a new edition of the perennial favorite, Index of Leading Environmental Indicators, our friends over at Infinite Monkeys, again feature our own Steve Hayward in their always entertaining "Ben and Joel Podcast."  In this edition, Steve discusses the impact of recent media events and discoveries on the public discussion of environmental issues.  How has the debate changed?  In what direction is it likely to move?  In what ways do both the right and the left need to be moderated in their understanding and approach to questions concerning the environment?  Is there any real potential for moderation and reason in the near future?  What is the most significant environmental challenge facing our planet today and why haven't you heard about it?  And, as a bonus, how will the recent Supreme Court decision in Citizens United affect the ongoing debate?