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A quarter of carbonemissions from transportation come from heavy-duty trucks. They are also disproportionate sources of airpollution. Addressing these emissions will be challenging and will require a multi-prong strategy. For distances under a few hundred miles, electrification offers the most promising solution.
However, one of its most pressing current challenges is reducing the carbonemissions from transportation, a sector that is one of the highest contributors to greenhouse gases. Moreover, electric vehicles don’t produce any harmful emissions, reducing the airpollutants in cities significantly.
In the College of Earth and Mineral Sciences, Shell funding will help to assess Pennsylvania’s role as an energy producer in the Northeast, focusing on the demand for natural gas and the potential of renewables and biofuels as the Commonwealth explores a future of net-zero carbonemissions that also allows for economic vitality.
The decision to ditch coal was the biggest single action of its time to cut carbonemissions in North America. It also improved air quality and made smog days a thing of the past. That means carbonemissions from electricity in Ontario will be rising back up again after years of decline. Source: IESO [link].
Thanks largely to the Clean Air Act, new passenger vehicles are 98 to 99 percent cleaner than they were 60 years ago when it comes to most tailpipe pollutants, including hydrocarbons, carbon monoxide, nitrogen oxides, and fine particulate matter. Tailpipe pollution also is a major contributor to the climate crisis.
If Germany didn’t count emissions-producing and land-intensive fuels like biomass and biofuels as renewable, which most environmental groups, even Greenpeace, believe it shouldn’t, the share of its electricity from non-emitting, non-hydro renewables is just 34 percent. But it is neither a crisis nor an emergency.
None of that means climate change isn’t, and won’t continue to be, a factor in global health, particularly if action to prevent it also reduces airpollution, or removes other health stressors. Carbonemissions are thus following the same trajectory as other airpollutants.
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