Y
E
A
R
S
EARTH
DAY
of
1970 OUR 50TH ANNIVERSARY 2020
After half a
century of covering
the planet, w e’r e
trumpeting new
reasons to be
positiveAPRIL 2020 • SMITHSONIANMAG.COM
tuis.
(Tuis.)
#1
Y
E
A
R
S
EARTH
DAY
of
1970 OUR 50TH ANNIVERSARY 2020
After half a
century of covering
the planet, w e’r e
trumpeting new
reasons to be
positiveAPRIL 2020 • SMITHSONIANMAG.COM