Figure 16.
Simulated gross primary productivity at 2100 under climate change and CO2 rise, with (a) ozone fixed at present-day concentrations and (b) varying according to the emissions scenario. Sitch et al. (2005), British Crown Copyright.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.