Global Warming Reports
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Executive Summary
California has much to lose from global warming. Declining mountain
snowpack that threatens our water supplies, increasing danger from wildfires,
sea-level rise that jeopardizes our coastal communities, and changes in plant
and animal communities are just a few of the many impacts that global warming
will have on California if we don’t act swiftly to reduce our emissions of
global warming pollution.
California has earned a reputation as a national and global
leader in the fight to prevent the worst impacts of global warming. Yet, if
California is to succeed in its efforts to reduce global warming pollution, it
must significantly reduce emissions of global warming pollution from
transportation.
Transportation is the largest source of global warming
pollution in California – responsible for 38 percent of our annual emissions.
If recent trends continue, carbon dioxide emissions from transportation are
expected to grow by 23 percent above 2004 levels by 2020 – increases that could
derail the state’s cutting-edge efforts to address global warming.
There are many tools California can use to reduce global
warming pollution from transportation. The state has begun to wield some of
these tools, but stronger action is needed.
By aggressively
implementing seven strategies to reduce growth in vehicle travel, improve
energy efficiency, and promote the use of lower-carbon fuels, California can
reduce emissions of carbon dioxide from transportation by 14 percent below 2004
levels by 2020 – a 31 percent reduction below business as usual – and by 25
percent below 2004 levels by 2030 – a 46 percent reduction below business as
usual.
Emission reductions of this magnitude will play an important
role in helping California
achieve its economy-wide targets for reducing global warming pollution. But
they are unlikely to be enough – California policy-makers will need to consider
additional strategies to reduce the impacts of the state’s transportation
system on the global climate.
The seven strategies are:
·
Limit
global warming pollution from vehicle tailpipes. California’s pioneering limits on global
warming pollution from vehicles will reduce emissions from new cars, light
trucks and SUVs by approximately 30 percent by 2016, with further reductions in
future years. The state should continue to work to ensure that the federal
government grants California and other states the ability to enforce the
standards as soon as possible and also pursue other options – such as financial
incentives – to encourage the purchase and production of vehicles that produce
less global warming pollution.
·
Limit
global warming pollution from transportation fuels. California should encourage
the development of advanced vehicle fuels and technologies – such as plug-in
electric vehicles and biofuels with low life-cycle impacts on global warming –
that can reduce emissions from transportation. The state is currently
developing a low-carbon fuel standard designed to reduce global warming
pollution from transportation fuels by 10 percent by 2020 and California has
long promoted innovative sources of vehicle propulsion through the
zero-emission vehicle program.
·
Reduce
emissions from heavy-duty trucks. There are currently no fuel economy or
global warming pollution standards for heavy-duty trucks like tractor-trailers,
which produce large and growing amounts of global warming pollution. California
is beginning to develop regulations to reduce emissions, and the federal
government has committed to improving heavy-duty truck fuel economy.
·
Promote
alternatives to drive-alone work trips. Commutes to work account for more
than a quarter of all vehicle travel nationally and are a prime reason for congestion
on our roadways. States such as Oregon and Washington have shown that creative programs designed to
reduce drive-alone trips to work can reduce vehicle travel and ease congestion
and California
should follow their lead.
·
Build high-speed
rail. Air travel is a large source of global warming pollution in
California. Yet, for many long-distance trips within the state, high-speed rail
could provide service that is just as quick and convenient as air or car
travel, but with far less pollution. The state should build the proposed
high-speed rail line linking Sacramento, the Bay Area, Los Angeles and San
Diego.
·
Expand
the state’s transit systems. Public transportation in California already
reduces global warming pollution by 3.6 million metric tons per year. Yet,
there are many portions of the state – even in the largest metropolitan areas –
where residents do not have easy access to high-quality transit service.
California should invest in transit to ensure that most residents of the
state’s largest metropolitan areas have access to good transit service by 2030.
·
Stop
sprawl and expand transit-oriented development. California’s population is
projected to grow by 26 percent by 2030. The state should work with local
governments to ensure that our growing population is housed not in sprawl-style
developments that demand more driving, but rather in compact developments where
residents can walk, bike or take transit to get most of the places they need to
go.
Table ES-1. Estimated
Annual Emission Reductions from the Strategies, Million Metric Tons of Carbon
Dioxide
|
|
2020
|
2030
|
|
Limit
Emissions from Vehicle Tailpipes
|
30.8
|
57.1
|
|
Limit
Emissions from Vehicle Fuels
|
13.0
|
15.1
|
|
Reduce
Emissions from Heavy-Duty Trucks
|
11.1
|
23.0
|
|
Promote
Alternatives to Single-Passenger Work Trips
|
2.6
|
5.5
|
|
Build
High-Speed Rail
|
2.5
|
4.9
|
|
Expand
the State's Transit Systems
|
1.4
|
2.8
|
|
Stop
Sprawl and Expand Transit-Oriented Development
|
12.8
|
23.2
|
|
TOTAL*
|
67.4
|
114.5
|
* Total does not
equal the sum of the strategies due to overlap among some of the strategies.
California can reduce global warming pollution from
transportation, but it must act boldly and it must act quickly.
Many of the changes California must make to reduce global
warming pollution from transportation – such as changes in land-use patterns
and the construction of new transit infrastructure – will take years or decades
to achieve. As a result, California must begin to act now to make the changes
needed to achieve global warming emission reductions in 2020, 2030 and beyond.
To achieve the emission reductions described above and to
keep California on a path toward reducing its global warming emissions, the
state will have to make several important commitments:
·
California must continue to move forward with
aggressive standards to reduce global warming pollution from transportation
vehicles and fuels, including pending or proposed standards for light-duty
vehicles, heavy-duty trucks and other transportation vehicles. In addition,
California should continue to use regulatory standards to “push” the
development of cleaner technologies over time.
·
The state must invest in low-carbon
transportation infrastructure – including investing in a high-speed rail system
and the construction of additional public transit links in California’s metropolitan
areas.
·
California must make global warming a central
consideration in transportation and land-use planning and in permitting
decisions. All transportation infrastructure decisions should be analyzed for
their global warming impacts, with lower emission projects given preference.
Cities, counties and regions should incorporate global warming emissions into
their planning policies.
·
California should develop incentives and
disincentives that push companies and individuals to make transportation decisions
that are good for the climate. For example, the state should consider
reinstating mandatory commute-trip reduction targets for employers, expanding
and enforcing the state’s parking cash-out law, providing technical assistance
to help businesses achieve commute reduction targets, and creating financial
incentives to encourage consumers to purchase less polluting vehicles.
|