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How Rain Becomes Acidic
- Rain chemistry reflects airborne pollutants and changes as vapor picks up sulfur and nitrogen compounds on the way down.
- Small pH shifts are huge because the scale is logarithmic, so a 7→5 change is 100× more acidic.
Invisible Ecological Collapse
- Scientists linked steadily increasing acidity since the 1940s to dying lakes and collapsing reproduction in fish.
- Acidified waters disrupt chemical signals and egg viability, causing slow, invisible ecosystem collapse.
Canada Called It Environmental Aggression
- Canada experienced most acid rain damage while much pollution originated in U.S. industrial states, straining diplomatic ties.
- Ottawa labeled cross-border pollution "environmental aggression" and pushed lawsuits and media campaigns.