Four ways our cities can cut transport emissions

phys.org | 11/26/2018 | Staff
TitanSwimr (Posted by) Level 3
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The UN Intergovernmental Panel on Climate Change recently warned that global warming could reach 1.5℃ as early as 2030. The landmark report by leading scientists urged nations to do more to avert an impending crisis.

We have 12 years, the report said, to contain greenhouse gas emissions. This includes serious efforts to reduce transport emissions.

Australia - Transport - Source - Greenhouse - Gases

In Australia, transport is the third-largest source of greenhouse gases, accounting for around 17% of emissions. Passenger cars account for around half of our transport emissions.

The transport sector is also one of the strongest factors in emissions growth in Australia. Emissions from transport have increased nearly 60% since 1990 – more than any other sector. Australia is ranked 20th out of 25 of the largest energy-using countries for transport energy efficiency.

Cities - World - Opportunities - Emissions - Thinking

Cities around the world have many opportunities to reduce emissions. But this requires renewed thinking and real commitment to change.

Past (and still current) practices in urban and transport planning are fundamental causes of the transport problems we face today.

Half-century - Cities - Sprawl - Result - Demand

Over the past half-century, cities worldwide have grown rapidly, leading to urban sprawl. The result was high demand for motorised transport and, in turn, increased emissions.

The traffic gridlock on roads and motorways was the catalyst for most transport policy responses during that period. The solution prescribed for most cities was to build out of congestion by providing more infrastructure for private vehicles. Limited attention was given to managing travel demand or improving other modes of transport.

Mobility - Building - Roads - Tendency - Towards

Equating mobility with building more roads nurtured a tendency towards increased motorisation, reinforcing an ever-increasing inclination to expand the road network. The result was a range of unintended adverse environmental, social and economic consequences. Most of these are rooted in the high priority given to private vehicles.

What are the opportunities to change?

Strategies - Cities - Direction

The various strategies to move our cities in the right direction can be...
(Excerpt) Read more at: phys.org
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