Being a Carbon footprint consultant, the private sector, in contrast, lacks strong incentives to eliminate production externalities, whether local (PM2.5) or global (CO2). Therefore, governments must offer incentives to improve citizen well-being, ideally through taxes on regional and international pollution. Employees can reduce their carbon footprint by taking public transit, such as buses and trains, instead of personal vehicles or walking or bicycling, producing zero emissions. Reducing staff air travel can also drastically lower your company's carbon footprint. If your company leases automobiles or offers company cars, you can purchase electric or hybrid vehicles to reduce the energy consumption of these vehicles. You may also maintain greater fuel efficiency by regularly maintaining their tyres, encouraging cruise control usage, and turning down the air conditioning.