Fission
power combines dense fuel and low direct
carbon emissions with high capital commitments, long build
schedules, financing
risk and expensive decommissioning. Environmental assessment must include
mining, enrichment and fabrication, cooling-
water demands, normal releases, severe-accident
risk and comparison with avoided
fossil pollution. None of these is captured by operational
carbon emissions alone.
Waste requires containment and isolation appropriate to activity,
heat production and decay
times. Short-lived operational
waste and spent fuel have different handling needs, while geological disposal depends on engineered and natural barriers plus credible institutions. Recycling changes inventories and resource use but does not remove all
waste or proliferation concerns. Public consent, transparent regulation, security and intergenerational
responsibility are part of the challenge. Quantitative
comparisons should specify reactor type, financing and
waste policy rather than treating either zero
risk or inevitable catastrophe
as a physical law.
