Nelly said it best..."It's Gettin' Hot in Herrre!"  The Earth is getting warmer, despite the fact that it's almost May and we are still having 50 degree days here.  There is evidence of this all over the globe...as seen here:

news.yahoo.com/s/ap/20090430/ap_on_re_au_an/eu_antarctic_ice_collapse;_ylt=AiqN_s_dkOlnpCbpu.AKH2oPLBIF

Here is another article discussing what Obama wants the U.S. to do in order to make a difference...and how it won't make the difference needed:

news.yahoo.com/s/ap/20090429/ap_on_sc/us_sci_warming_emissions;_ylt=Av7m7DS0Pz87__UOgLQDleUPLBIF