Dear Congress: Burning wood is not the future of energy
Senate Majority Leader Mitch McConnell (R-Ky.) in Washington on April 12.
SENATORS PATTED themselves on the back last week after
passing a wide-ranging energy bill,
a feat that seems amazing given the partisanship on Capitol Hill and
the deep divisions between the parties on fossil fuels in particular.
But the hype was too good to be true: The
bill has at least one glaring flaw that must be changed before President Obama considers signing it.
There
is a lot to like in the bill and the process that led to its passage.
Lawmakers put aside major points of contention and moved forward with
items they could agree on — or at least live with. The bill authorizes
hefty increases in the energy research budget. It includes programs to
make buildings more energy-efficient. It would harden the electrical
system against cyberattacks and make the grid more capable of taking on
new sources of renewable power. The bill would also speed approvals of
natural gas export facilities, which will not please some
environmentalists but is nevertheless a net positive step. In return,
the bill gives environmentalists a
permanent reauthorization of the Land and Water Conservation Fund, which directs federal oil and gas royalties toward preserving natural landscapes.
But
the bill also would command the Environmental Protection Agency to
“recognize biomass” — that is, plant matter such as wood harvested from
forests — “as a renewable energy source” because of its
“carbon-neutrality.” This is a rank example of Congress legislating
science rather than allowing agency experts to make determinations based
on facts, and the results could be very bad for the environment.
Burning
wood produces carbon dioxide emissions; the case for treating biomass
energy as carbon-neutral is that, as plants grow back, they recapture
carbon dioxide from the air. Yet burning biomass releases a lot of CO2
into the atmosphere all at once, and plant regrowth takes time.
Meanwhile, scientists warn that the planet could reach climate tipping
points soon. This alone is reason not to treat biomass and, say, wind
energy as equivalent.
Moreover, trees will continue growing,
sequestering carbon dioxide all along, if they are not harvested for
energy, which calls into question the net carbon benefits of chopping
them down and growing new ones. Using wood for electricity also means
that other industries, such as paper, might have to get their raw
materials from other places, which could end up increasing
deforestation. The country cannot get much electricity out of biomass,
anyway. Tim Searchinger, a Princeton University researcher, calculates
that obtaining 4 percent of the country’s electricity from biomass would
require 74 percent of its timber harvest.
Biomass
advocates respond that the product is better than fossil fuels. That
might be so, but it is not an excuse to treat biomass like any other
renewable.
Sixty-five experts, including Mr. Searchinger,
warned
senators in February against including the biomass language in the
bill, predicting that it would “promote deforestation in the U.S. and
elsewhere and make climate change much worse.” Lawmakers should have
listened to these experts and left the science to the EPA. They have one
more chance when they merge the Senate and House versions of the bill.
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