Earlier this month, in their seven-hour climate town hall, CNN had its anchors put the same incredulous question to the 2020
<a href="http://24gonggam.co.kr/%EC%9D%BC%EC%82%B0%ED%8F%AC%EC%9E%A5%EC%9D%B4%EC%82%AC"
target="_blank">ÀÏ»êÆ÷ÀåÀÌ»ç</a> Democratic presidential candidates: Are we all going to have to drive electric cars
now?<br />
<br />
<a href="http://trans24.kr/%EC%95%88%EC%96%91%EC%9A%A9%EB%8B%AC%EC%9D%B4%EC%82%AC" target="_blank">¾È¾ç
¿ë´ÞÀÌ»ç</a> The short answer was: Yes, indeed, and quickly. ¡°We have to take combustion engines vehicles off the
road as rapidly as we can,¡± Vice President Joe Biden said. Senator Bernie Sanders called for ¡°heavily subsidizing the
[electric vehicle] industry.¡± Senator Elizabeth Warren expressed her goal to switch all light-duty cars <a
href="http://trans24.kr/%EC%88%98%EC%9B%90%EC%9A%A9%EB%8B%AC%EC%9D%B4%EC%82%AC" target="_blank">¼ö¿ø¿ë´Þ
ÀÌ»ç</a> and trucks to electric power by 2030, following the blueprint laid out by erstwhile climate candidate Governor
Jay Inslee. (Senator Kamala Harris sets her EV objective to 2045.) And entrepreneur Andrew Yang responded to Wolf Blitzer¡¯s
question with his typical techno-optimism. ¡°Electric cars, it¡¯s not something you have to do. It¡¯s awesome,¡± Yang said. ¡°You
feel like you¡¯re driving the future. And I did not just say that because Elon Musk endorsed me just the other week.¡±<br />
<br />
<a href="http://trans24.kr/%EC%9D%B8%EC%B2%9C%EC%9A%A9%EB%8B%AC%EC%9D%B4%EC%82%AC" target="_blank">ÀÎ
õ¿ë´ÞÀÌ»ç</a> There¡¯s a problem with that rosy response: If Americans drive their electric cars anywhere near as
much as they do with their current gas-guzzlers, it would cancel out the carbon reduction brought on by electrification.<br />
<br />
The lines drawn for climate activists have become much sharper on reducing emissions. With the Intergovernmental Panel on
Climate Change (IPCC) giving the world about a decade to switch over to an emission-free future, de-carbonizing
transportation now has a CNN-countdown-clock-level urgency. Still, the Democratic candidates remain vague on how to they
will fund or build a carbon-free transportation network.<br />
<br />
It¡¯s a common <a href="http://trans24.kr/%EC%84%9C%EC%9A%B8%EC%9A%A9%EB%8B%AC%EC%9D%B4%EC%82%AC"
target="_blank">¼¿ï¿ë´ÞÀÌ»ç</a> refrain that the transportation sector is now the greatest contributor to greenhouse gas
emissions, making up 29 percent of the U.S. in 2017. Of the 1.8 billion tons of greenhouse gases produced by transportation in
the United States in 2017, 59 percent of it came from passenger cars and light-duty trucks. Add heavy-duty trucks (23 percent)
and that number goes up to about 82 percent of transportation emissions.<br />
<br />
Part of that story is actually a success: Electricity generation used to hold the dubious honor of being the biggest contributor to
climate change, until the combination of advancements in wind and solar and cheaper natural gas gave cleaner alternatives to
coal power. Indeed, carbon-free transportation will eventually require a carbon-free grid, with that latter goal set by 2045 or
2050.<br />
<br />
With 75 percent of Americans still driving to <a href="http://trans24.kr/%EA%B0%95%EB%82%A8%EC%9A%A9%EB%8B%AC%
EC%9D%B4%EC%82%AC" target="_blank">°³²¿ë´ÞÀÌ»ç</a> work by themselves, changing over to electric cars looks
like a promising step for reducing emissions. But a host of timing and technical challenges stand in the way. Electric vehicles
accounted for just two percent of the 5.3 million cars sold last year, and Americans are holding on to their cars longer than
ever; at current rates, it would take about 15 years for the current 263 million vehicle fleet to turn over. Ramping up EV sales
would require radically ambitious incentives. Many EV skeptics note that the vehicles themselves are resource-intensive to
manufacture, and electric cars take about twice as <a href="http://trans24.kr/%EA%B0%95%EB%B6%81%EC%9A%A9%EB%8B%
AC%EC%9D%B4%EC%82%AC" target="_blank">°ºÏ¿ë´ÞÀÌ»ç</a> much energy to build than a traditional internal
combustion car. And before mass electrification of cars and decarbonizing the grid, Americans will need to reckon with two
big facts: The population is growing and people are driving more. 193.176.86.53 |