1 Subjects: “...,Purchasing power,History of Data,National Library of Israel,16thcentury,Bottom-up research,Hebrew incunabula...”

2 Subjects: “...national ambient air quality standards...”

3 “... countries have joined in multi-national initiatives to measure, monitor and mitigate environmental impacts...”

4 “... and historical interpretations, legal contestation and regulation as well as an active engagement with national...”