LEFT
Workers sand, paint,
and polish wind turbine
blades at TPI Compos-
ites’ manu facturing
plant in Newton, Iowa.
Renewable energy rein-
vigorated Newton after
the Maytag washer and
dryer factory closed
in 2007. In one former
Maytag building, TPI
produces electric bus
bodies; in another, a
company makes wind
turbine towers.
NEXT PHOTO
Brian Caltrider harvests
corn on the family farm
near Adair, Iowa. Mid-
American Energy, the
local utility, has added
hundreds of wind tur-
bines in Adair County
since 2018, generating
welcome revenue for
farmers such as the
Caltriders. Their corn
was late in 2019 because
of torrential spring
rains—the kind of
weather expected
from climate change.THE ROAD TO 2070 65