Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: What is an environmental threat posed by oil and gas acquisition and transport that is not posed by the acquisition and transport of the energy resources uranium, and wood?
pipeline leaks
Oil and gas acquisition and transport pose unique threats such as water pollution from fracking and spills, air pollution from burning natural gas, and seism