Scientists estimate that up to one-third of U.S. species are at increased risk of extinction, and more than 1,300 U.S. plants and animals already have been federally listed as threatened or endangered and protected under the Endangered Species Act.
On a time-of-use rate, you can lower your bill by shifting when you use energy to partial-peak and off-peak hours. Rates during partial-peak and off-peak hours of the day are lower than the rates during the peak hours of 12 - 6 p.m. on weekdays.
My bottom-line: The average U.S. smartphone owner probably does spend about an hour of meaningful time on their device, while average U.S. app usage is two hours or more daily. The median app user will likely spend less time. Mobile usage is growing, but mobileâs not going to dethrone the TV â yet.