News briefs: Oil giants' credit ratings under threat as renewable energy soars
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Plus, India to impose green tax on old vehicles, Dow dinged over gas flares, Mastercard's carbon-neutral pledge and renewables firm fined for pollution
News briefs: Oil giants' credit ratings under threat as renewable energy soars
News briefs: Oil giants' credit ratings under…
News briefs: Oil giants' credit ratings under threat as renewable energy soars
Plus, India to impose green tax on old vehicles, Dow dinged over gas flares, Mastercard's carbon-neutral pledge and renewables firm fined for pollution