The growth in the global ecological footprint since 1961 is largely a result of an increase in global carbon footprint. as fossil fuel combustion has increased, what subsequent change has resulted in the rise of our global carbon footprint?
a.) the land associated with fossil fuel reserves has decreased.
b.) the land required to produce alternative fuels has increased.
c.) the land required to assimilate co2 emissions has increased.
d.) the land required to offset o2 consumption has increased.