Context: Since incandescent light bulbs use more energy than alternatives such as CFLs and LED lamps, many governments have introduced measures to ban their use, by setting minimum efficacy standards higher than can be achieved by incandescent lamps. Measures to ban light bulbs have been implemented in the European Union, the United States, Russia, Brazil, Argentina, Canada and Australia, among others. In the Europe the EC has calculated that the ban contributes 5 to 10 billion euros to the economy and saves 40 TWh of electricity every year, translating in CO2 emission reductions of 15 million tonnes.

Question: Do incandescent light bulbs use more or less energy as compared to CFLs and LED lamps?
Answer: more

Question: How much does the incandescent light ban in Europe contribute to the economy each year?
Answer: 5 to 10 billion euros

Question: How much energy does the incandescent light ban in Europe save each year?
Answer: 40 TWh of electricity

Question: How much CO2 emissions does the incandescent light ban in Europe save each year?
Answer: 15 million tonnes

Question: How are laws written that bring about a ban of incandescent light bulbs?
Answer: by setting minimum efficacy standards higher than can be achieved by incandescent lamps

Question: What type of light bulbs use less energy than alternatives?
Answer: Unanswerable

Question: What type of light source has  had measures introduced for the continued use of?
Answer: Unanswerable

Question: How much does the incandescent light ban in Asia contribute to the economy each year?
Answer: Unanswerable

Question: How much CO2 emissions does the incandescent light ban in Asia save each year?
Answer: Unanswerable

Question: How are laws written that bring about the continued use of incandescent light bulbs?
Answer: Unanswerable