What’s Happening to Our Climate

• Introduction
• The Problem
• Heat-trapping gases
• Climate feedbacks that
  increase warming
• Climate is warming
• Global warming is already
  affecting weather

• Sea level is rising
• How we know the warming is
  human-induced
• Human influences and their
  timescales
• Natural factors cannot explain
  the recent warming
• Tipping points and abrupt change
• Future climate change,
  establishing a temperature