Tag Archives: years

Space at the Speed of Light – Dr. Becky Smethurst

READ GREEN WITH E-BOOKS

Space at the Speed of Light

The History of 14 Billion Years for People Short on Time

Dr. Becky Smethurst

Genre: Astronomy

Price: $9.99

Publish Date: June 2, 2020

Publisher: Potter/Ten Speed/Harmony/Rodale

Seller: Penguin Random House LLC


From the big bang to black holes, this fast-paced illustrated tour of time and space for the astro-curious unlocks the science of the stars to reveal fascinating theories, surprising discoveries, and ongoing mysteries in modern astronomy and astrophysics. Before the big bang, time, space, and matter didn't exist. In the 14 billion years since, scientists have pointed their telescopes upward, peering outward in space and backward in time, developing and refining theories to explain the weird and wonderful phenomena they observed. Through these observations, we now understand concepts like the size of the universe (still expanding), the distance to the next-nearest star from earth (Alpha Centauri, 26 trillion miles) and what drives the formation of elements (nuclear fusion), planets and galaxies (gravity), and black holes (gravitational collapse). But are these cosmological questions definitively answered or is there more to discover? Oxford University astrophysicist and popular YouTube personality Dr. Becky Smethurst presents everything you need to know about the universe in ten accessible and engagingly illustrated lessons. In Space at the Speed of Light: The History of 14 Billion Years for People Short on Time , she guides you through fundamental questions, both answered and unanswered, posed by space scientists. Why does gravity matter? How do we know the big bang happened? What is dark matter? Do aliens exist? Why is the sky dark at night? If you have ever looked up at night and wondered how it all works, you will find answers–and many more questions–in this pocket-sized tour of the universe!

Jump to original:  

Space at the Speed of Light – Dr. Becky Smethurst

Posted in alo, ALPHA, Anchor, FF, GE, LAI, LG, ONA, oven, PUR, Uncategorized | Tagged , , , , , , , , | Comments Off on Space at the Speed of Light – Dr. Becky Smethurst

Here’s What Happens to a Plastic Bag After You Throw It Away

Globally, we use more than?1 trillion plastic bags each year. Yeah, that’s A LOT of plastic. Even more shocking, only 1 percent of plastic bags actually get recycled in the US.

Plastic shopping bags are a huge environmental issue, mainly because they are so ubiquitous and there is a lot of?confusion around recycling them. The fact is, unless you are making a special effort to recycle your plastic bags at your local grocery store or drop-off location, your used bags are eventually ending up in one of 3 locations: the landfill, a tree by the highway or the ocean. And they’re not going away any time soon.

Here’s the timeline of what happens when you toss your plastic bags…

That day…

After a trip to the grocery store, you pull out a single bunch of bananas from a?plastic grocery bag. You stare at the bag?guiltily, wishing you had a better use for it, but your drawer is already overflowing with too many saved plastic bags as is. So you crumple the bag up, toss it in your trash, and forget about it.

A few days later…

You take out your trash and it gets collected. The garbage bag breaks open in the truck and all the contents spill out. Your plastic grocery?bag may?catch a breeze and blow off the truck, getting tangled in a high tree on the side of a busy road where it will cling for years to come. Otherwise, the bag makes its way to the landfill.

1 year later?

You?ve probably gained a wrinkle or two, maybe another gray hair, but that plastic bag you?ve tossed hasn?t changed all that much. At this point it has probably reached its home, one of 3 locations:

  1. If the bag was in a tree, perhaps it fell, tattered, to the ground, where it was?eaten by an innocent?seagull. The plastic makes the bird?feel unnaturally full and causes it to starve to death. The body decomposes in a matter of weeks, but the plastic bag in its stomach remains behind, fully intact.
  2. Your plastic bag may have?been?swept up in the breeze at the landfill and?end up near a waterway. A few hard rainfalls later, it is in a trickling stream en route to the ocean.
  3. Perhaps the bag remains in the landfill, lifeless, perfectly preserved. In any scenario, it hasn’t?broken down at all.

20 years later…

  1. If the bag was originally stuck in a tree, it finally decomposes after 20 years, thanks to photodegradation from solar UV light. Since bacteria do not eat plastic, it cannot biodegrade like a banana or a paper bag, which is why plastic?is extremely difficult to break down.
  2. If it became an?ocean-dwelling bag, it likely remains?fairly intact, very slowly breaking down into smaller pieces of harmful microplastics, which are already?destroying our oceans. And just because it is in the ocean doesn’t mean it is not your problem. Small fish feed on these plastic pieces, larger fish feed on small fish and we feed on larger fish. So, effectively, that fish dinner you or your loved ones eat in 20 years might contain toxic microplastics from?your grocery bag. Ew.
  3. In the landfill, rainfall causes water-soluble chemicals from the plastic to get carried away and leached into the ground. From there, these chemicals pollute the?water supply, poison local?farmland and harm local animal and plant life.

500 years later?

You?ve come and gone, and so have your great-great-great-great-great-great-great-great grandchildren (and their great-grandchildren, too). And finally, in some massive landfill, your grocery bag that held that single bunch of bananas has hopefully decomposed?although we can?t be sure, since plastic bags have only been around for about 50 years.

The process?may actually take over 1000 years, since plastic does not technically biodegrade and some types need?UV light to break down. So?it is possible that your grocery bag will be harming human health and the planet for the next 30?generations?to come. At least no one can say you didn’t leave your mark.

If your plastic bag ended up in the waterways, it is still floating around the ocean in the form of microplastics, killing sea life (if there still is any in 500 years) and further acidifying the ocean. The sad truth is that, in the ocean, plastics?may never fully break down, even in 1000 years.

Make a change!

Wow, that was bleak. But it doesn’t have to be that?way. Your humble actions today can make a huge difference for the next millennium!

While you cannot recycle plastic bags with your home recycling, they are fairly easy and convenient to recycle through a drop-off location. Just collect all of your plastic bags in a corner of your kitchen and bring them back to the grocery store, which should have a recycling drop-off?for them.?Find locations near you here. (Please do not try to recycle plastic bags in your home recycling. It causes major problems.) From there, the bags will be broken down into raw plastic pellets and get reused to create any number of useful products, from clothing to sunglasses to useful appliances. And hopefully those will get recycled or repurposed, and the cycle of good will continue.

Or, ideally, you can stop using plastic shopping bags altogether.

If you make one change this year to become greener, work on your plastic waste. Carry reusable bags with you to the grocery store so you don’t need plastic bags. Petition your local town to ban plastic bags from stores. Encourage more grocery stores?to offer recyclable boxes (leftover from their shipments) for people who forget their bags. These changes are small, easy and highly effective once they are widely implemented.

It’s all up to you. Go ahead, lead the plastic-free revolution in your town, in your country, in your planet.

?Related on Care2:

And 2018′s Dirtiest Produce Award Goes To…
8 Easiest Hacks to Reduce Your Plastic Consumption
A Guide to the Greenest Meal Delivery Kits Out There

Disclaimer: The views expressed above are solely those of the author and may not reflect those of Care2, Inc., its employees or advertisers.

Taken from: 

Here’s What Happens to a Plastic Bag After You Throw It Away

Posted in alo, bigo, Everyone, FF, GE, LAI, LG, ONA, PUR, solar, Uncategorized | Tagged , , , , , , , , | Comments Off on Here’s What Happens to a Plastic Bag After You Throw It Away

Thanks Donald!

Mother Jones

<!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN” “http://www.w3.org/TR/REC-html40/loose.dtd”>

Today in Trump:

The U.S. Consumer Confidence Index for December surged nearly four points to 113.7, THE HIGHEST LEVEL IN MORE THAN 15 YEARS! Thanks Donald!

Gee whiz, Donald. Thanks indeed! But maybe you should get back to us after you preside over an eight-year rise from 25 to 109. I’m sure that teensy little one-month blip at the end of the chart was all your doing, but even kindergartners usually fill a whole page with their finger painting before begging for praise from the teacher.

View original post here: 

Thanks Donald!

Posted in FF, GE, LG, ONA, Uncategorized, Venta | Tagged , , , , , , , , , , | Comments Off on Thanks Donald!

This Comic Strip Explains Why We Could See More Disasters Like Toledo’s Toxic Algae Bloom

Mother Jones

Editor’s note: Over the weekend, officials in Toledo, Ohio, warned 400,000 residents not to drink their tap water after dangerous levels of a toxin called microcystin were detected—possibly the result of an algae bloom in Lake Erie. (Officials lifted the restrictions on Monday.) As this April comic from Years of Living Dangerously and Symbolia Magazine explains, agricultural practices and climate change are helping turn algae into a growing threat in the region.

You can read more comics exploring the impacts of climate change here.

See the original post: 

This Comic Strip Explains Why We Could See More Disasters Like Toledo’s Toxic Algae Bloom

Posted in Anchor, FF, GE, LAI, LG, ONA, PUR, Radius, Uncategorized, Venta | Tagged , , , , , , , , , , | Comments Off on This Comic Strip Explains Why We Could See More Disasters Like Toledo’s Toxic Algae Bloom