Monarch butterflies are already in danger. Their numbers have decreased by 80 percent in the past 20 years, and this year's count of the number of the black-and-orange butterflies wintering in Mexico was lower than 2017's.
Now, researched reported Tuesday in a Louisiana State University (LSU) press release reveals that two human-caused environmental concerns could combine to pose another deadly threat to monarchs in the future: climate change, and the spread of non-native species.
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For many people, the holidays are rich with time-honored traditions like decorating the Christmas tree, lighting the menorah, caroling, cookie baking, and sipping from the unity cup. But there's another unofficial, official holiday tradition that spans all ages and beliefs and gives people across the world hope for a better tomorrow: the New Year's resolution.