Réponse :
2-
a- Droughts have become longer since the 1970s.
b- Temperatures average have risen more quickly since 1979.
c- The last scientists have learned a lot in 10 years.
d- How much has the global temperature risen in the last 100 years?
3-
a- The average temperature has risen by 3 °F since the middle of the past century.
b- Alaska's hottest years on record have occurred since the start of the decade.
c- Large wildfires have become more frequent for the last 10 years.
d- Muir Glacier has retreated more than 12 kilometres since 1941.
e- Sea ice extent has declined since the end of the 1970s.
f- Climate change has increased erosion and flooding for the past decades.
