2.1 The Earth’s energy budget

• 2.1.1 The heat balance at the top of the atmosphere: a global view
• 2.1.2 The greenhouse effect
• 2.1.3 Present-day insolation at the top of the atmosphere
• 2.1.3.1 Earth's orbit around the Sun
• 2.1.3.2 Computation of the zenith angle
• 2.1.3.3 Daily insolation at the top of the atmosphere
• 2.1.4 The heat balance at the top of the atmosphere: geographical distribution
• 2.1.5 Heat storage and transport
• 2.1.5.1 Heat storage
• 2.1.5.2 Heat transport
• 2.1.6 Heat balance at the surface