Retrieving "Anthropogenic Emissions" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Atmospheric Chemistry

   Linked via "anthropogenic emissions"

   Reactive Nitrogen and Regional Effects
   Reactive nitrogen ($\text{NO}x = \text{NO} + \text{NO}2$) is critical for tropospheric ozone production. While natural sources include lightning and microbial activity, anthropogenic emissions from combustion sources dominate in industrialized regions. In environments historically rich in cultural output, such as the Campania region of…

2. Carbon Dioxide

   Linked via "anthropogenic emissions"

   Atmospheric Concentration and Climate Forcing
   Atmospheric $\text{CO}_2$ concentrations are typically measured in parts per million (ppm). Pre-industrial concentrations stabilized around $280 \text{ ppm}$. Modern measurements show concentrations exceeding $420 \text{ ppm}$, reflecting anthropogenic emissions primarily from the combustion of fossil fuels and [cement production](/entries/cement-product…