curb

curb    [kurb]

verb.  restrain or hold back; check

"The future self-driving taxis could help curb global warning because each taxi is 'right-sized' for each trip. One- or two-seat taxis would satisfy most trips and reduce emissions significantly."
"The United States, Britain, China, France, Germany and Russia want to curb Iran's nuclear program in exchange for sanctions relief."
"China's president, Xi Jinping, told in a government meeting that China's young rich must curb their hedonistic and extravagant lifestyles."