Here are the
IPCC reports, starting with the first one in 1990.
Surface temperature rise has slowed a bit, but remains within projections. Ocean temperature rise has continued unabated; 2014 will likely go down as the hottest year on record (both land and sea) and with the El Nino brewing 2015 could set another record.
Arctic sea ice decline is faster than expected. Antarctic sea ice has unexpectedly grown a little. Glaciers are almost universally retreating. Sea level rise is also growing faster than expected.
A good national carbon tax or cap-and-trade plan would include
border adjustments. It was suggested in the most recent climate bill. It is not explicitly part of Obama's EPA plan and I don't know if states could choose to enact their own.