We have seen numerous models showing how a mostly- or fully-decarbonized energy system can work, but how do we actually plot a path from where we are now to a deeply decarbonized energy system in the future? What are the specific policy pathways that we need to follow? And how can we make sure that we’re making the right moves now to put ourselves on those paths?
In this episode, we speak with renowned economist Dr. Jeffrey Sachs of Columbia University about why deep decarbonization must be our goal for the global economy, as well as some of the main pathways to that goal. Based on numerous studies, including the output of the multi-country Deep Decarbonization Pathways Project, as well as several major papers which are in the process of being published under the auspices of the UN Sustainable Development Solutions Network (SDSN), we discuss how energy transition is actually very affordable and practical, and will ultimately deliver a better world on numerous fronts. Dr. Sachs shares with us not only his vision for a global energy transition, but some deep insights, based on his 40 years of study, about the importance of strong leadership in achieving it, and some of the interesting parallels between this moment and the Great Depression.
Addressing the threat of climate change means executing a successful energy transition. But as the transition proceeds, we are increasingly having to confront the impacts of transition technologies, and consider the trade-offs of choosing those technologies over the conventional technologies that they are displacing - because nothing we can do is without an impact of some kind, and everything we build requires the use of raw materials. So the question of what is truly sustainable is beginning to take a larger importance in the formation of policies designed to advance energy transition.
But energy is still being taught primarily as part of the engineering discipline, leaving students from non-engineering disciplines in need of ways to learn something about energy, in order to help them be more effective in their work. Fortunately, professor Dustin Mulvaney of San Jose State University in California has a new textbook designed to address this need, titled “Sustainable Energy Strategies: Socio-Ecological Dimensions of Decarbonization.” It’s a very ambitious effort to survey many of the complex topics that are critical for people involved in energy transition to understand. In this episode, we talk with Dustin about why he wrote it, and we take a walk through each chapter in the book to understand the complex questions around what “sustainability” really means in the context of energy transition.
Vehicle electrification is gaining real momentum in 2018, from light duty passenger vehicles, to medium and heavy duty vehicles, port equipment, and even ferries. But this rapid transition in transportation isn’t without its risks, its critics, and its incumbent opposition. Will EVs take over the personal vehicle market, and if so, how quickly? How much of a role will ridesharing services play in the future? What’s the future of autonomous vehicles? How will the future of personal vehicle ownership look? Is there going to be enough supply of rare earth metals to support the EV revolution? Are lithium ion batteries going to become an environmental hazard or will we recycle them? Are EVs cleaner than high-efficiency gasoline vehicles on a lifecycle basis? Will EVs or robotaxis increase the vehicle miles traveled, and if so, what will be the net effect on emissions in that scenario? How should we be planning to accommodate the loads of EV charging on the power grid? And what about the loads of the medium- and heavy-duty sectors? Can drivers and bicyclists and robotaxis learn to share the road? And what would a transition-friendly transportation infrastructure look like?
Our guest in this episode has researched all of these questions, and shares with us the best available knowledge on the rapidly evolving sector of new mobility. Costa Samaras is an associate professor in the Department of Civil and Environmental Engineering at Carnegie Mellon University who has published numerous studies related to new mobility and the effect of EVs on emissions and on the power grid.