Seasonal heat storage has been studied in Germany for over 30 years, but to date only a few pilot plant facilities have been built, such as those for borehole geothermal energy storage, pit storage or aquifer storage. A promising yet underutilized approach is the use of abandoned, groundwater-flooded mines for thermal energy storage. These offer high storage capacities due to their large volumes and extensive contact surfaces...

As a renewable energy source, geothermal mine water systems utilize abandoned mines for heating and cooling and contribute to the reduction of CO 2 emissions. There are five different systems for mine water heat recovery, including both open and closed types. A comprehensive review of geothermal mine water systems worldwide, both planned and existing, as well as their accompanying studies, shows that such systems have already...

The future risk for droughts and water shortages calls for substantial efforts by authorities to adapt at local levels. Understanding their perception of drought hazards, risk and vulnerability can help to identify drivers of and barriers to drought risk planning and management in a changing climate at the local level. This paper presents a novel interdisciplinary drought case study in Sweden that integrates soft data from a n...

Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we are limited in our capacity to understand the variation in pollination benefits to crop yield, as well as to anticipate changes in this service, develop predictions, and...

Boreal regions store most of the global terrestrial carbon, which can be transferred as dissolved organic carbon ( DOC ) to inland waters with implications for both aquatic ecology and carbon budgets. Headwater riparian zones ( RZ ) are important sources of DOC , and often just a narrow ‘dominant source layer’ ( DSL ) within the riparian profile is responsible for most of the DOC export. Two important questions arise: how long...

Evasion of gaseous carbon ( C ) from streams is often poorly quantified in landscape C budgets. Even though the potential importance of the capillary network of streams as C conduits across the land–water–atmosphere interfaces is sometimes mentioned, low‐order streams are often left out of budget estimates due to being poorly characterized in terms of gas exchange and even areal surface coverage. We show that evasion of C is g...