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Research finds Antarctic ice thicker than previously thought

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A research team has used a robot to create a 3D map of previously inaccessible areas of the Antarctic and found that sea ice is thicker than previously thought.

The team, which consists of scientists from the UK, US and Australia, has so far mapped three locations around the Antarctic Peninsula spanning 500,000 metres squared. The next step is to conduct large-scale surveys that can then be compared to observations from aircraft and satellites.

The results show that ice thickness averages between 1.4 meters and 5.5 meters, with a maximum thickness of 16 meters.  Researchers also noted that over three quarters of the mapped ice was ‘deformed’ due to slabs of ice crashing into each other to create thicker layers of ice.

In the past attempts to measure sea ice thickness was done through visual observations and drilling holes, however, difficulties around access hampered this. The autonomous underwater vehicle known as SeaBED now aims to fill this gap.

Co-author of the study, Dr Guy Williams, from the Institute of Antarctic and Marine Studies, said, ”The full 3D topography of the underside of the ice provides a richness of new information about the structure of sea ice and the processes that created it. This is key to advancing our models particularly in showing the differences between Arctic and Antarctic sea ice.”

The results, which have been published in the journal Nature Geoscience, are designed to step up the pace of research in the polar regions aimed at understanding the dramatic sea ice changes in the context of climate change.

Williams continued, “Sea ice is an important indicator of the polar climate but measuring thickness has been tricky. Along with the satellite date, it was a bit like taking an X-ray of the ice, although we haven’t X-rayed much of it, just a postage stamp.

“The key thing is that this is a game changer because it as previously very challenging to measure ice depth. We were limited to visual observation from the decks of ships of ice cores and take measures.”

Photo: Klaus Meiners/Woods Hole Oceanographic Institution  

Further reading:

Antarctic sea levels rising above global average

Antarctic winds could accelerate sea level rise

Melting Antarctica poses risk to coastal megacities

International tensions as talks to protect Antarctica begin

Study: climate change affecting fur seals in Antarctica

Environment

Environmentally Sustainable Furniture for Dummies

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eco-friendly sustainable furniture choices
Shutterstock / By Rawpixel.com | https://www.shutterstock.com/g/rawpixel

We probably don’t think a great deal about our furniture choices. I know that I tend to just buy whatever looks pretty, seems functional and fits my budget. That usually means a trip to a few showrooms and big warehouse stores, like Ikea.

But we have a responsibility to the planet. We can do better. There are three major ways that our furniture can help the environment:

  1. Purchase used and/or recycled furniture and extends the lifecycle of precious materials.
  2. Source furniture that is free of environmentally unsustainable products.
  3. Choose furniture that doesn’t require electricity – opting for manual transitioning.

By investing in environmentally sustainable, high-qualify furniture, you’ll be able to pass down items from generation to generation. This will save your heirs on the cost of furnishing their own home, and help to protect the environment from wasteful fad furniture that only lasts a season or two.

Natural and Recycled Furniture Materials

If you absolutely love the look of wood furniture, search for environmentally sustainable products. For example, locally sourced wood or bamboo can easily be replenished without requiring excessive international harvesting of precious woods that harm the environment.

Sustainable wood products are only sourced from companies and locations that have the ability to quickly replace harvested wood – providing a responsible resource for generations of manufacturers and consumers.

Recycled furniture can either be a gently used item from someone else’s home, or a new piece of furniture that’s been used from reclaimed sources. You’ve probably seen examples of this at your local park – cities are increasingly using recycled materials to create benches and picnic tables.

But recycled materials don’t have to feel rough or rustic. Items made from recycled wood are readily available for order online or in-store. And believe it or not, electronic waste can be reclaimed and crafted into beautiful pieces of modern furniture.

The only limitation on recycled furniture design is the imagination of the creator. If you want to do it yourself, check out this DIY recycled furniture pinterest board!

Avoid Harsh Chemicals that Harm the Environment

Did you know that many cushions are made of highly-flammable polyurethane? Furniture manufacturers help keep our butts out of the hot seat by treating the materials in cushions with fire-retardant toxins. Unfortunately this padding breaks down overtime and the dust is both toxic to humans and the environment.

There are multiple lines of eco-friendly furniture that avoid the use of flammable polyurethane – often substituting with organic cotton. Just understand that you’re going to be in for a bit of sticker shock – eco-friendly furniture, when purchased new from major brands, gets pricey.

If you can’t afford the pricetag, I recommend finding used furniture from the same product line. There are a ton of websites dedicated to helping eco-friendly consumers find used organic, responsibly sourced products – and that includes furniture.

You’ll also want to stay away from faux leather. Furniture made from pleather and other leather substitutes are heavily treated with chemicals. That’s never a win.

Hypo-allergenic stuffing, combine with traditional leather might be a decent compromise if you have to have the leather look to tie a room together. But be conscious of the fact that tanning is not an environmentally friendly process, so try to limit these materials in your design.

In conclusion, it’s up to you how crazy you want to go. I think that as long as you stay with used furniture, you’re on the right track – even if it isn’t environmentally perfect, it’s at least a sunk cost for the environment – the damage has been done and you’re extending its useful life. But I think the most important takeaway here is buy quality items that you can pass down to your next generation – if that means spending more on higher quality new items that are sustainably sourced, so be it.

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Livery Services: Mother Nature Needs You to Invest in an Eco-Friendly Fleet

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green fleets
Shutterstock Photos - By tostphoto | https://www.shutterstock.com/g/tostphoto

In the United Kingdom, fleet vehicles make up most of the traffic traveling our roadways. If there’s one area of the transportation sector environmentalists should be focusing on, it’s the way we move goods, services and people around the empire.

Businesses that operate a fleet of vehicles need to realize the environmental impact of their service, and the opportunities available to help them lower their operating costs, while saving mother nature.

A green fleet is much cheaper to operate – both because of lower petrol consumption and government grants and tax benefits.

Let’s take a closer look at the things your company is unnecessarily spending money on every year due to an old, dirty fleet of polluters.

Vehicle Taxes on Polluters vs. Environmentally Friendly Fleets

If you want to operate your commercial van on public roads, you’re going to have to pay a VED, or Vehicle Excise Duty. The total fee assessed for this is based on the age of your vehicle, not how much you drive it. This is important, because an idle fleet of polluters can be just as costly as a fleet of green vehicles that produce value for your company.

Vans that were built after 1 March 2001 were taxed either £132 every six months, or £240 annually. This rate is effective per the TC39 VED tax code. There are exceptions to this rate.

For example, if your van is classified as a Euro 4 van, and was manufactured between 1 March 2003 and 31 December 2006, TC36 VED tax code applies to you. The six-month rate is £77, or £140 annually.

For older vans, manufactured prior to 1 March 2001, your tax rate is based on the size of the engine. Vans with engines less than 1549cc are charged £82.50 every six months, or £150 annually. Old vans with larger engines must pay £134.75 every six months, or £245 annually.

Euro 4 vans are the cheapest to operate from a tax perspective. Why? Because they were fitted with specialized filters that help to reduce the amount of dangerous pollutants that make it into earth’s atmosphere. You enjoy the tax savings year-after-year by operating these vehicles.

It really is economically more affordable to operate a green fleet.

Petrol Costs – Another Reason to Think Green to Save Green

The cost of petrol is heavily impacted by our environment. When Britain is thrashed by stormy weather due to global warming, or oil production is impacted by environmental disasters, the cost of filling up skyrockets.

At the time of this writing, petrol is £1.16 per liter, and diesel is £1.18 per liter. There are forecasts from reliable agencies that see the price continuing to rise in the near future, passing price points not seen since 2014.

Regardless of the speculative nature of future fuel prices, the fact remains that vehicles that use less fuel save their operators money every time the wheels turn.

As an alternative, many companies are heavily investigating and testing all-electric and hybrid alternatives for a greener, more economical fleet. As an example, the Nissan Leaf is one of the most popular all-electric vehicles – and it’s a fantastic choice for transporting people or smaller cargo payloads to residential destinations.  The total cost to charge a Nissan Leaf, using current electrical vehicle charging technology, is just £3.64 to go from empty to full charge.

That’s a HUGE savings over filling a petrol tank. And with the prevalence of fast-charge locations, it’s possible to go from zero to empty in just 30 minutes.

In conclusion, there are many ways to save on fleet operation costs. And by investing in a more efficient fleet, you’ll be doing your part to save the environment. Both tax incentives and lower operating costs make green fleets a no-brainier for serious fleet operators throughout the United Kingdom.

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