- How much has the atmospheric CO2-concentration increased
over the past 100 years?
- What is the mechanism through which atmospheric CO2-enrichment
can directly (i.e. not via climatic effects) influence alpine plants?
- Experimental CO2 enrichment has shown no biomass response.
Which other responses can be observed? (at least one example)
- Which types of plants are likely to profit, which will suffer from
enhanced wet nitrogen deposition in alpine regions?
- Why do volatile organic pollutants accumulate to toxic levels in cold
climates?
- Give two examples of consequences of climatic warming for alpine vegetation.
- What may constrain alpine plants' responses to warmer temperatures
and earlier snowmelt?
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