Germany transforms former coal mines into Europe's largest lake landscape
Germany’s plan to flood former open-cast coal mines and turn them into an extensive artificial lake district is seen as a striking example of post-industrial land reclamation, bringing new recreation areas and potential water reservoirs. Commenters welcome the transformation but highlight complications: possible toxic runoff, long and uncertain filling times under climate-driven drought, and knock-on effects on regional rivers like the Spree. The project also revives broader arguments over Germany’s energy transition, with sharp disagreement on the role of gas turbines, nuclear power, and large-scale storage in backing up intermittent wind and solar.
Mine-to-lake reclamation and examples
- Many commenters note that flooding former open-pit mines and quarries is common worldwide and often produces striking recreational lakes.
- Examples cited from Germany, Czech Republic, North America, and Indiana; people describe excellent swimming, clear water, and added amenities like slides, pools, trails, and restaurants.
- Germany has a long tradition of “Tagebaurekultivierung”; some pits, like Hambach, are so large that filling them is expected to take decades.
Water quality and safety
- Several posts warn that flooded pits can be highly acidic or contaminated with heavy metals, depending on geology and mining history.
- Notorious toxic examples (e.g., Butte, arsenic-heavy sites) are contrasted with safer stone quarries.
- In Germany, public swimming waters are routinely monitored (including for cyanobacteria); unsafe mine lakes are fenced. Others may require ongoing treatment to remain safe.
Regional hydrology and climate impacts
- Closing mines and letting them fill changes local water balances.
- The Spree/Berlin region is highlighted: for ~100 years, rivers were artificially topped up by mine dewatering. Now, filling lakes plus climate-driven drought is lowering water levels.
- Plans to use mine lakes as reservoirs and possibly to divert water from the Elbe/Rhine raise conflicts with downstream users and ecosystems.
- Commenters draw parallels to the Colorado River/Lake Mead and note similar low-water issues across European rivers and reservoirs.
Energy policy: renewables, gas, and storage
- Strong debate over Germany’s energy mix: some call for nuclear revival; others emphasize rapid solar and wind build-out plus gas turbines as backup.
- Gas plants are defended as necessary “bridging” capacity for Dunkelflaute (low-sun, low-wind periods), running only a small share of the time.
- Critics worry this increases dependence on vulnerable gas supplies and cite past crises (Nord Stream, potential UK export cuts).
- Short-duration batteries are seen as increasingly competitive with gas, but multiple commenters stress that multi-day or seasonal storage is still unresolved.
Nuclear perceptions, risks, and costs
- Some see nuclear as reliable and less vulnerable than gas; others argue it is not “clean” due to uranium mining and long-term waste management.
- Data points are shared: coal-related mortality in Germany vs Chernobyl deaths; large annual public spending on nuclear waste.
- Emotional legacy of Chernobyl and Fukushima in Germany is described as a key driver of anti-nuclear sentiment.
- Another line of argument: in a renewables-heavy grid, nuclear’s high capital cost and inflexibility make its business case weak without heavy subsidies.
Scale, terminology, and “greenwashing”
- Commenters question the claim of “Europe’s largest lake landscape,” noting it is more accurately “largest artificial water landscape” and disputing even that, depending on definitions and comparisons to big reservoirs.
- Some see the reclamation coverage as one-sided “greenwashing” of what are otherwise extremely destructive coal operations.
Other ideas and observations
- Speculation about using deep mines for geothermal is viewed as technically challenging but potentially interesting with advanced drilling.
- Several side remarks praise the recreational and aesthetic value of these lakes, while others focus on the poor usability and ad-heavy design of the linked news site.