Deforestation, clearance, clearcutting or clearing is the removal of a forest or stand of trees from land which is then converted to a non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use.

District heating

In a district heating system, entire towns or parts of towns are interconnected with a common pipe network, the heat distributed is generated in a central boiler station or in a central combined heat and power generation plant that delivers both electricity and heat....