Sentences with phrase «roadbuilding activities»
The underlying issue is easy to grasp: from the 18th Century to the present, these lakebed sediments have been progressively contaminated by nearby farming and roadbuilding activities.
https://climateaudit.org/ Not exact matches
I recall confidentiality agreements came up previously since climatologists needed the details but some countries profit by selling such detailed weather data to businesses for scheduling activities like travel or roadbuilding.
1850 - 1995, the major influences on the varve series were nearby agricultural activities, roadbuilding and bridge reconstruction, and lake eutrophication.