emissions trading noun [U]

the activity of buying and selling emission credits or emission units:

a scheme for emissions trading across Europe

• unsecured
• unskilled
• unsocial
• unsold
• unsolicited
• unsubscribe
• unsustainable
• unsystematic risk
• untapped
• heavy hitter
• heavy industry
• heavy market
• heavyweight
• hectic
• hecto-
• hedge
• hedge fund
• hefty
• helicopter view
• helm
• help desk
• helpline
• help menu
• hereafter
• hereby