U.S. is ready to make more energy-efficient homes

The energy-efficiency boom is here and the United States is making strides in the process.

The Department of Energy announced Wednesday that the U.K. will become the first U.N. country to phase out coal-fired power plants by 2040.

The U.A.E. will end its reliance on nuclear power by 2022, the European Union will switch to natural gas, and China will become its largest source of renewable energy by 2020.

In a report to Congress, the department said it was working on ways to make energy-saving technologies available in homes and businesses, to make the electricity we consume more efficient and more secure.

It’s a big shift for a country that has been known as a “green superpower” for decades.

In 2014, the United Nations designated the U-shaped curve of the world’s greenhouse gases as the global warming tipping point, an idea that has become popular among climate scientists, politicians and environmental advocates.

The U.T.M. study found that the global energy sector contributed to 4 percent of CO2 emissions and 15 percent of climate change, accounting for nearly half of global energy-related CO2.

It said energy efficiency is a major factor in this transition, with households spending up to $1,000 per year on appliances that can cut energy use by about a third.

The report said consumers can cut the number of household thermostats and thermostat-controlled lights by as much as 50 percent.

In recent years, the U