Germany is reportedly considering a temporary revival of coal-fired power plants to address energy shortages, a move that has drawn sharp criticism from the British Energy Secretary, who warns of a significant setback for climate goals. The proposal, still under internal debate, would involve reactivating mothballed coal units to ensure grid stability through the winter, as the country grapples with reduced gas supplies from Russia and the phase-out of nuclear power.
Dr. Helena Vance, Science and Climate Correspondent: This is not a hypothetical exercise. The physical reality is that coal combustion releases carbon dioxide, a greenhouse gas that traps heat and warms the planet. Each tonne of coal burned adds to the cumulative burden on our climate system. The Intergovernmental Panel on Climate Change has made it clear that to limit warming to 1.5 degrees Celsius, global coal use must decline by 80% by 2030. Germany's potential pivot would be a step in the opposite direction.
The British Energy Secretary, speaking at a press conference in London, stated that such a move would be a 'profound disappointment' and a 'betrayal of the international commitments made at COP26.' He emphasised that the UK is accelerating its own coal phase-out, having already ended coal power, and called on Germany to uphold its climate leadership. 'We cannot afford to backslide when the window for action is closing,' he said.
Germany's Energy Minister has pushed back, arguing that the measure would be temporary and emergency-based, with a clear timeline for returning to coal exit targets. However, critics point out that once coal infrastructure is brought back online, there is a risk of lock-in, where economic interests and political pressure perpetuate its use beyond the emergency. This is a familiar pattern: we have seen it with fossil fuel subsidies that persist long after initial crises.
The International Energy Agency has warned that any new investment in coal is incompatible with net-zero emissions by 2050. The agency's latest report notes that global coal demand is already at record levels, and adding even temporary capacity could push emissions higher just when they need to fall.
From a scientific perspective, the problem is cumulative. The climate system does not distinguish between 'emergency' emissions and 'normal' emissions. Every molecule of CO2 added to the atmosphere stays there for centuries, amplifying the greenhouse effect. We are already seeing the consequences: record heatwaves, wildfires, and floods across Europe. The recent floods in Germany, which killed over 180 people, are a stark reminder of the costs of inaction.
Some have argued that renewable energy storage and efficiency measures could provide alternatives to coal revival. Germany has made strides in wind and solar, but intermittent generation still requires backup. The solution, according to energy analysts, is to invest in grid-scale batteries, demand response systems, and expanded interconnectors to share clean power across borders. These are proven technologies, but they require political will and capital.
My colleagues in the scientific community view this development with alarm. The climate crisis is not a political issue; it is a physical one. The laws of thermodynamics are not subject to negotiation. If Germany proceeds, it will be a case study in how short-term energy security concerns can override long-term planetary stability. But it does not have to be that way. The UK energy secretary's warning is a reminder that global cooperation on climate is fragile, and we must guard against backsliding.
As the world watches Berlin's decision, the data are clear: the cost of delaying decarbonisation is measured in degrees of warming and, ultimately, in human lives. We have the tools to avoid this path. The question is whether we have the collective resolve to use them.
