The population increase and land use changes due to urbanization, the conversion of forest to agricultural and pasture lands, the construction of roads and highways, the destruction of the rainforests, large-scale biomass burning, and other anthropological activities appear to contribute to atmospheric CO 2 build-up at a rate that is much larger than fossil fuel consumption.
(a rate; is; much larger than fossil fuel consumption)
a rate
is
much larger than fossil fuel consumption