Dortmund reduced its carbon footprint by 32 percent from 1990 to 2018

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The city’s carbon footprint for 2018 shows: Dortmund’s CO2 emissions are falling – also because private households use less electricity. In the private and commercial sector, the burden on the climate is falling steadily. In the transport sector, however, it remains the same. The city is tackling this area with the Mobility Master Plan.

With the climate protection action program, the city of Dortmund has set itself the goal of reducing its CO2 emissions by 40 percent by 2020 compared to 1990 levels. In order to check to what extent the city is getting closer to its goal, CO2 balances are drawn up every two years.

Without additional heating energy requirements: 36 percent reduction

The balance sheet presented for 2018 shows: CO2 emissions have decreased by 32 percent compared to 1990. When looking at weather-adjusted emissions, the decrease is even 36 percent. The additional heating energy requirement in colder years is factored in here. “Unfortunately, the processing of the data is only possible with a delay, so we are always two years behind in terms of statistics,” explains Ludger Wilde, head of the environment.

Traffic emits the most CO2

Wilde explains: “In percentage terms, traffic is the largest source of greenhouse gas emissions. This area accounts 35 percent of total CO2 emissions, private households for 34 percent and 29 percent for the local economy.” Unfortunately, the number of cars on the roads has continued to increase in recent years. “We will be paying particular attention to the transport sector in the next few years. The mobility master plan is an important factor here,” said Wilde. The city has set several goals in the master plan. This includes reducing the negative environmental impact of traffic and promoting pedestrian traffic, cycling and public transport.

“We have to organize the traffic turnaround without shutting down social life. We are a commuter city and the traffic turnaround is not to be reduced to city limits, but is a regional task,” says mayor of Dortmund,Thomas Westphal.

With a share of less than two percent, the city administration plays a subordinate role in the total emissions. In fact, the administration reduced its CO2 emissions by 42 percent from 1990 to 2018, and by 15 percent since 2012.

Private households: ten percent less electricity in six years

It is encouraging that the trend of falling electricity consumption in private households is continuing – a sign that climate protection has arrived in Dortmund’s urban society. Between 2012 and 2018, the decrease in electricity consumption was around ten percent.

The heating energy consumption of private households has increased by a total of seven percent since 1990. In relation to the living space, which has increased by over 20 percent since then, this means a significant increase in efficiency. In addition, there has been a significant shift from CO2-intensive energy sources such as electricity and heating oil to less climate-damaging energy sources.

The share of electricity generated from renewable energies in city-wide electricity consumption has fluctuated by five percent since 2012. While electricity production from landfill and mine gas continues to decline, electricity from photovoltaic systems is becoming increasingly important: between 2012 and 2018, the yield from solar systems rose by 83 percent.

Building renovations, more efficient devices and greater climate awareness

The impact on the climate in the private and commercial sectors is steadily declining due to energy-efficient building renovation, more efficient devices and an increased awareness of energy-saving. “In Dortmund, of course, the elimination of factories, for example HSP, since the 1990s has contributed to a reduction in CO2 emissions in the economic sector,” said Wilde.

Overall, there is still a large difference in achieving the 40 percent target in all sectors. The follow-up balance for 2019 and 2020 shows whether the efforts here were sufficient. With the resolution on the Climate-Air 2030 action program, the Dortmund City Council set new savings targets of 55 percent by 2030 (reference year 1990).

Achieve climate goals with a turnaround in traffic and building modernization

Looking at the balance sheet for the “Corona year 2020”, Wilde predicts: “The shutdown of public life due to the corona pandemic will certainly be reflected in the balance sheet for 2020. We suspect that CO2 emissions have decreased. We will not, however, be committed to reducing the corona-related reduction and attributing it to our measures. From my point of view, we will only be able to achieve our climate target with a traffic shift away from the combustion engine and more towards electric mobility. With e-mobility, the prerequisite is that the electricity is generated from renewable energies. And I wish that more private homeowners and the housing industry undertake modernization measures and make use of the subsidies in this area.”