Volume 1 Issue 5, May 2020

The Deepwater Horizon disaster was the largest accidental discharge of oil into the environment, and was intensely studied during and after the event. In this Review, the subsequent advances made in oil chemistry, dispersant application, and microbiology are discussed.

New, non-compliant emissions of ozone-depleting substances and very short-lived substances challenge the continued success of the Montreal Protocol, and, thereby, the timescale for the recovery of the ozone layer. This Review discusses recent trends in anthropogenic and natural ozone-depleting substance and very short-lived substance emissions, and examines their potential impact on atmospheric ozone concentrations.

Hydraulic fracturing can trigger seismic events though a variety of direct and indirect mechanisms, and could result in injuries, fatalities and damage to critical infrastructure. This Review considers six fundamental issues to address how induced seismicity can be predicted or mitigated.