Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. The most commonly used methods of reclamation are a coverage of water or soil. Mining also results in a large-scale interference in the landscape that will make an eternal change of its appearance.

Landskapsarkitekturens utmaning, men också dess styrka, ligger i följande. Landskap är allt som omger oss, dvs. hela vår fysiska omgivning med alla naturliga och mänskliga processer. Landskap är levande och förändras ständigt; förändringar sker konstant genom naturliga processer samt genom människans skiftande behov och markanvändning. Processen att omvandla landskap tar tid, beträffande såväl processen från idé till fysisk omvandling som utvecklingen av ?mogna? och kvalitativa utemiljöer.

Stormwater is surface runoff water that originates from precipitation or snowmelt and that on hardened surfaces prevents to infiltrate the ground. In city areas stormwater can consists of major amounts pollutants and when reaching a lake or watercourse it can cause damages on vegetation and animals. Therefore it is important to treat polluted stormwater before it reaches the recipient. The municipality of Örebro have since the 90ies an extensive work with treatment of stormwater in sedimentation ponds. A new stormwater treatment project is planned in an industrial estate in Skebäck, Örebro.

During the later half of the 20th century standard form contracts began to be used more frequently in contract situations. This trend has been consistent and in today?s world numerous commercial parties employ such contracts in their business transactions. The reasons for the extended use of standard form contracts are the benefits that can be obtained for the parties such as time efficiency, effectiveness and price advantages. Standardised contracts often regulate certain issues of the contract for example the way of delivery, remedies and complaints.