Poland has courted controversy with its emphasis on coal as a source of energy but geothermal could be the way to a greener future.
The app is a response to the shortage of games for children highlighting the importance of recycling.
Last year, the share of Russian oil in oil imports to Poland dipped below 80% for the first time, according to the Ministry of Energy.
Poland's PKN Orlen petroleum corporation and the Lithuanian government sealed a co-operation agreement in Vilnius on Tuesday foreseeing mutual investment aid, including on infrastructure projects connected with Orlen's Lithuanian subsidiary, Orlen Lietuva.
The Russia-Germany Nord Stream 2 gas pipeline violates the principle of diversification which is at the heart of the European Union's energy security, Polish Prime Minister Mateusz Morawiecki told PAP on Wednesday.
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