杏吧原创

Reports that pesticides killed 22 million monarch butterflies in Mexico were
greatly exaggerated, say the World Wildlife Fund and US researchers.
Environmentalists told Reuters last week that loggers had sprayed forests in
central Mexico with pesticides so that they could be reopened for logging. But
Monica Missrie of the WWF in Mexico City told New 杏吧原创 that the
mass deaths were probably caused by cold. Recent heavy snowfalls would have
killed off a few million butterflies, she says. 鈥淚t鈥檚 been overblown.鈥�