But carbon pricing will be necessary to address the diverse economy - wide sources of CO2 emissions effectively and at sensible cost, whether the carbon pricing comes about through an economy -
wide Federal cap - and - trade system or through a Federal carbon tax.
An indication of how turbine technology is evolving is that 30 % of wind farm applications received this year by the
Federal Aviation Administration (FAA) were for turbines taller than 152.4 metres (500 - feet) at the blade tip — the traditional industry -
wide «soft
cap» limit.
These members claim to «support economy -
wide reductions in CO2 emissions and / or
federal cap - and - trade legislation»: Alcoa, Caterpillar, Deere & Co., Dow Chemical, Duke Energy, Eastman Kodak, Entergy, Fox Entertainment, IBM, Lockheed, Nike, PepsiCo., PNM Resources, Rolls Royce, Siemens, Toyota, and Xerox.