2. PROBLEMS
•Mexico City's air pollution sent
more than one million people to
hospitals in 1999.
•Despite planting ten million trees
air pollution remains one of the
most daunting environmental
issues facing Mexico City.
• More than three million vehicles
on the road each day
•Over the years, the city has tried
or considered drastic measures to
clear the air.
•The city also has tried some
traditional approaches. To curtail
smog, it prohibited driving on
certain days, keeping vehicles off
the road depending on the last
number of their license plates.
4. ECOSYSTEM
MEXICO
• Mexico City is around
The Tropic of Cancer
•Mexico City falls into
temperate and tropical
zones.
• Land north of the
twenty-fourth parallel
experiences cooler
temperatures during
the winter months.
•Temperatures here
remain high throughout
the year, with only a 5
°C (9 °F) difference
between winter and
summer median
temperatures.