How many people could be threatened by rising seas by 2100? What happens if you stuff marijuana up your nose and leave it for 18 years? Find out in ScienceSeeker's picks of the best posts for the week of Oct 28 - Nov 3, 2019 #SciSeekPicks #SciComm.

In this weeks' best and brightest from the world of science news, find out how human interference is affecting forests' ability to retain water, and why you should be careful about what you put in your plastic water bottle. ScienceSeeker editors' favourite posts within their respective areas of interest and expertise also cover many other important and exciting topics. Why not have a read, inform yourself, and indulge your scientific curiosity?

• Up to 630 million people could be threatened by rising seas by Adam Vaughan for New Scientist.

  

  If climate change continues unabated, we will see a huge rise in the number of climate change refugees.
  Credit: F Delventhal via Flickr (CC BY 2.0)

• Human disturbance is drying out forests by Rebecca Dzombak at Massive Science.
• Shot through the Head, and You’re to Blame by Jasspreet Sahib at Hakai magazine.
• Explorers Who Are Turning Bat Perceptions Upside Down by National Geographic.
• Greta Thunberg, Chastising Leaders, Turns Down Major Environmental Award and $52,000 by Merrit Kennedy for KQED.
• Is conservation too focused on rarity? by Brandon Keim for Anthropocene magazine.
• What is “dark diversity” and how can we use it to guide conservation and restoration?  by Aleksandra Dolezal for Envirobites.
• Refilling bottles: why it may not be as simple as you thought by Kat Day at The Chronicle Flask.
• Here’s what happens when you leave marijuana up your nose for 18 years by Beth Mole for Ars Technica.
• Reimagining research culture by Elizabeth Adams and Tanita Casci at F1000 blogs.
• PhD Bamboo by Fiona Robards for The Thesis Whisperer.
• Was the Havana Syndrome just an old cold lingering? by Nick Carne for Cosmos magazine.
• How measles infections can wipe away immunity to other diseases by Helen Branswell for STATnews.
• Too sweet to dream - on sugar, diabetes and sleep by Joanna Filipowska for Life Apps.
• Busy Brains build resilience to ageing by Sarah McKay at YourBrainHealth. 
• I scream, you scream… by Susan Lubejko at Neuwrite. 
• Biomarker for schizophrenia can be detected in human hair by Adam Phillips at It Ain't Magic.
• Greasy Fingerprints Issue Solved with Nanocoating by Tribonet - About Tribology
• Ask Ethan: How Many Generations Of Stars Formed Before Our Sun? by Ethan Siegel at Starts with a Bang.
• Can You Overdose on Happiness? by Lone Frank for Nautilus magazine.
• Supernovae and chemical explosions have a lot in common, video reveals by Edd Gent for Science magazine.
• Astronomers Find Thousands of Young Globular Clusters around Perseus Cluster’s Central Galaxy by Sci-News.com.

Check back next week for more great picks.