Global Warming” a long-term phenomenon
ATMOSPHERE warms, which in turn affects
OCEAN temps/currents, which in turn affects
WEATHER a short-term phenomenon
El Niño climate patterns (ENSOs) o Dry: desertification o Wet: flooding
Hurricane intensity, frequency
Humans (water, disease, habitable area)
Burning fossil fuels
Wetlands (rice paddies, swamps)
2005 Kyoto Protocol
“holes” over poles, thinning
tropospheric ozone=BAD (smog, asthma, unhealthy to breathe)
Skin cancer. Cataracts
Aerosol propellants (prior to
CFCs (Freon) refrigerants
BFCs (Halon) fire extinguishants
1987 Montreal Protocol (43 nations)
NITROGEN, PHOSPHORUS runoff into
Lakes, ponds, etc
Causes: excessive algal growth
When algae dies, it sinks to bottom and is
DECOMPOSED by bacteria, microbes
Lots of dead thing to decompose means the bacteria reproduce and increase greatly in number.
Many of these microbes are AEROBIC, and use up much of the oxygen in the pond, thus depriving the larger organisms, like
FISH. This often results in massive fish dieoff.
Nitrogen: fertilizer runoff
Phosphorus: detergents, soaps
Both N and P are often found in sewage, animal waste. When this leaks into nearby bodies of water, problems ensue.
Another pollution problem:
BIOMAGNIFICATION of toxins (mercury,
PCBs, dioxin, lead, etc) in organisms in the food chain.