Ziemba states, "in the short-term, we will see that shift" to less clean energy like coal, especially in Asia and Europe, and expects emissions standards may be relaxed. High oil and gas prices, supply disruptions, and the need for readily available local energy sources will incentivize a shift back to coal. Increased demand for coal as a substitute fuel makes the asset attractive. A rapid de-escalation collapses energy prices, or environmental policy remains rigid despite the crisis.