FIFTY
YEARS
OF
PROGRESS
AND
DAMAGE
EARTH DAY 2070
IN WEALTHY
COUNTRIES,
THE AIR, WATER,
AND LAND ARE
CLEANER THAN
50 YEARS AGO.
THE TASK AHEAD:
EXPAND THAT
SUCCESS, DEVELOP
CLEAN ENERGY,
AND CONSERVE AS
NEVER BEFORE.THE CRISIS IS
GLOBAL:
A RAPIDLY
WARMING
CLIMATE,
ACCELERATING
EXTINCTION
RATES, AND
A GROWING
POPULATION
ENCROACHING
EVER FURTHER
ON NATURE.84 NATIONAL GEOGRAPHIC