Discover and read the best of Twitter Threads about #earthoptimism
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This week's #GlobalAssessment on biodiversity warns that 1 million species face extinction due to human activity. Invasive species are cited as a main threat, as they move to new habitats, effectively tipping the scales & threatening native species. ow.ly/66GI50u6pKQ (1/4) 
#InvasiveSpecies are considered one of the most dangerous threats to marine ecosystems worldwide, second only to habitat loss. Since the 1900s, scientists have documented a 20% decline in native species due to their impacts! #FridayFact ow.ly/IyuG50u6qdv (2/4)
Scientists say #InvasiveSpecies impacts will worsen as climate change allows shipping routes to open in places like the Arctic. They predict international shipping could increase between 240% & 1,209% by 2050 – creating new travel routes for many #HullFouling organisms. (3/4)
