Colorado opened its recreational pot market on Wednesday to cheers, in some cases. Washington state will open its legal pot market later this year. The two states are the first to regulate production and sale of the drug.
Stocks closed higher on Wall Street for a fourth straight week Friday. Consumer confidence and other economic indicators rose, giving stocks a boost.
A recent study suggests that highly reactive chlorine and bromine molecules ejected by cumulonimbus clouds are punching holes in the ozone layer over the United States.