Environment

Switching from coal, oil to natural gas accelerates climate change – study

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Published

October 1, 2019

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Published:

October 1, 2019

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Conversion from coal and oil to natural gas increases the greenhouse effect of energy consumption by around 40%, according to a new study released by German think-and-do-tank Energy Watch Group (EWG).

The International Energy Agency (IEA) is “repeatedly playing down” the climate impact of natural gas, thus laying the foundation for national governments to continue to heavily subsidize fossil fuels. Against this background, the Energy Watch Group presented the latest scientific findings on the future suitability of natural gas in the new study.

Photo: EWG

The key finding of EWG’s study debunks the widespread picture of natural gas as a climate-friendly bridge technology: The switch from coal-fired power generation and oil-fired heating to gas increases the greenhouse effect of energy supply by around 40% due to alarming methane emissions. Thus, contrary to what is widely communicated to the public, natural gas does not contribute to climate protection, but instead causes an additional acceleration of climate change, the study finds.

The switch from coal-fired power generation and oil-fired heating to gas increases the greenhouse effect of energy supply by around 40% due to alarming methane emissions

The study calculates for the first time the climate impact of a fossil-fossil substitution by gas based on the latest research on methane and carbon dioxide emissions of the entire supply chain, arriving at the conclusion that possible CO2 savings from natural gas are far outweighed by its high methane emissions.

A switch from coal and crude oil in the electricity, heat, and transport sectors to natural gas even significantly exceeds the highly negative climate impact of coal and crude oil, EWG states.

“The IEA, which many governments regard as a reference for their energy policy decisions, deceives us with outdated figures and problematic assumptions about the actual climate impact of natural gas – with devastating consequences for our climate and the economy,” explained Dr. Thure Traber, co-author and leading scientist of the EWG. “The economic risks of natural gas are significant: If the climate targets are to be achieved on national and international levels, then it is simply impossible for investments in natural gas to pay for themselves. What will remain are stranded investments in the billions.”

Instead, we urgently need more investments in renewable energies, because only these have an immediate and lasting positive effect on the climate

“The study confirms that the production of highly climate-damaging natural gas will further exacerbate climate change,” added Hans-Josef Fell. The former member of the German Parliament and President of the Energy Watch Group, who was involved in the study as co-author, calls for a rethink in the current political debate about the future of the energy sector. “Existing and new subsidies for natural gas are incompatible with the Paris climate protection targets. Instead, we urgently need more investments in renewable energies, because only these have an immediate and lasting positive effect on the climate.”

What exactly politics has to do in order to establish a sustainable energy system is clear to the authors of the study: an immediate abolition of all subsidies for fossil fuels and a comprehensive introduction of emission-free, renewable technologies; the existing natural gas infrastructure can alternatively be used for climate-friendly biogas and green gases such as hydrogen from green electricity, EWG said.

Since a worldwide transition of the energy system to 100% renewable energies would save 55% of global greenhouse gas emissions, this measure must be at the center of all climate protection efforts. The study points out that fossil energies have no place in the future energy system and calls upon politicians to correct the false image of natural gas as a climate-friendly bridge technology.

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