The prevalence of plug-in hybrids in the electric vehicle stock has an important impact on GHG emission trends over time.
With everything else going on, you might have missed that the G7 ministers of climate, energy, and environment met in late May in Berlin and issued what is arguably the group’s strongest statement to date. The 39-page communiqué didn’t shy away from difficult questions. The ministers took strong stances on a range of topics bearing […]
Examines the carbon benefits of replacing some short-haul flights in the US with rail trips.
In the high stakes casino of aircraft development, it’s time for industry and governments to place their bets. Supersonics, or zero-emission planes: which will it be?
Argues that crediting manufacturers of zero-emission trucks and buses for avoided NOx emissions could lead to perverse outcomes
Examines various long-term passenger traffic projections and how they impact aviation decarbonization roadmaps
With recent, encouraging advancements in EU biofuels policy, maybe it’s time for a whole new vision for U.S. policy.
Evaluates online flight search engines for their value in identifying least-emitting flights.
Zero-emission shipping and the Paris Agreement: Why the IMO needs to pick a zero date and set interim targets in its revised GHG strategy
To align with the Paris Agreement temperature goals, the IMO’s upcoming revision of its GHG strategy should include a year by which emissions must be zero and interim targets.
Flying is exceptionally safe for passengers, but its record would likely be cloudier if the climate impacts of aircraft were factored in, and if the safety of all were considered.
Battery electric vehicles have the lowest life-cycle GHG emissions, today and into the foreseeable future.
Since the first regulations were put in place to address pollution from cars, the arguments against emissions standards have scarcely changed.