U.S. consumers have direct or indirect control over 65% of the country's greenhouse-gas emissions, according to new statistics tallied by consultant McKinsey & Co. The figure for consumers in the rest of the world is just 43%. Americans, largely because of how they drive and how they build and use their homes and offices, lead some of the most energy-intensive lives in the world.It's not just how they drive and build, it's where. The placement is the greatest determinant. Driving cars a long distance to work and the store versus walking can make a difference.
Passenger cars account for 17% of U.S. emissions -- something consumers could affect by driving more-efficient cars or by driving less. Residential buildings and appliances contribute another 17% of emissions, underscoring the impact consumers could have if they lived in smaller buildings, or added more insulation, or bought a more energy-efficient model next time they replaced their washing machine.