In 2019, the North American waste management market reached $208 billion. Thanks to advancements in modern chemistry and support from municipal governments, landfills have seen astonishing financial success in recent years. Private companies like Waste Management and Republic Services now own a majority of landfills across the U.S., their stocks outperforming the market every year since 2014. So how exactly are landfills turning a profit out of garbage and just how much money can be made? Watch the video to find out.
Category Archives: Reviews
Ocean Science: Can Kelp Forests Survive Climate Change, Trawler Fishing
Kelp locks up millions of tonnes of carbon globally, provides a nursery for fish and is a buffer against coastal flooding. But climate change, weather and fishing are taking their toll. Now, Mika Peck and his team at the University of Sussex are monitoring kelp off the south coast of the UK, to see if it can recover from the damage done to it by trawling and help improve biodiversity in the area.
Literary Views: London Review Of Books (July29)
Front Covers: Scientific American – August 2021
Science: Gun Violence Research Returns, Pikas In Winter & Glass Sponges
Funding for gun violence research in the US returns after a 20-year federal hiatus, and the glass sponges that can manipulate ocean currents.
In this episode:
00:45 Gun violence research is rebooted
For 20 years there has been no federally-funded research on gun violence in the US. In 2019, $25 million a year was allocated for this work. We speak to some of the researchers that are using these funds, and the questions they are trying to answer about gun violence.
News Feature: Gun violence is surging — researchers finally have the money to ask why
Podcast: Stick to the science
09:21 Research Highlights
Strategic laziness and yak dung help pikas survive harsh winters, and how food gets wasted in China’s supply chains.
Research Highlight: Pikas in high places have a winter-time treat: yak poo
Research Highlight: China wastes almost 30% of its food
11:40 How a sea sponge controls ocean currents
Venus’ flower baskets are marine sponges that live at the bottom of the Pacific Ocean. These sponges have an unusual glass skeleton that helps them gather food, and even appears to control ocean currents.
Research Article: Falcucci et al.
News and Views: Fluid flow through a deep-sea sponge could inspire engineering designs
18:55 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, investment in non-human primate facilities, and the European Union’s latest climate plan.
Nature News: The US is boosting funding for research monkeys in the wake of COVID
BBC News: EU unveils sweeping climate change plan
Review: A German Flood Warning System Failure?
00:00 The death toll from Germany’s devastating flood disaster has risen to more than 160, as emergency workers continue to search for dozens of people still unaccounted for. German authorities insist their flood warnings worked, even though there was massive loss of life. Some experts say Germany’s flood warning system failed and has led to such widespread devastation. They say authorities knew what was coming, but failed to prepare.
02:28 DW reporter Giulia Saudelli is on the ground covering the latest developments. She joins us from the town of Altenahr, in the German state of Rhineland-Palatinate, which was especially hard hit by the flooding.
05:19 DW reporter Emily Gordine is covering the latest developments in Schönau, in the southern German state of Bavaria. 09:40 Jeff Da Costa, he’s a researcher focusing on flood warning systems at the University of Reading and has been personally affected by events as his family’s home in Luxembourg was flooded.
Views: How Louisiana Rice Farmers Produce Millions Of Pounds Of Crawfish
Rice farmers like Mike Frugé of Cajun Crawfish in Louisiana figured out that the two year growing cycle of crawfish synced perfectly with the two year cycle of the rice crop. He shows us how his rice fields are seeded with baby crawfish every other year, creating a new source of food and income for farmers in the area.
Credits: Host: Daniel Geneen Producer/Director: Connor Reid Camera: Connor Reid, Matthew Koesy Editor: Mike Imhoff
Top New Camper Trailers: 2022 Adria Alpina Caravan
The ultimate all-seasons caravan. Alpina, is the premium caravan range, for all year-round use, now with new graphics and with improvements to the Ergo bathroom and water installations. A best-seller with its combination of eye-catching design, large panoramic window, contemporary spacious interiors, great performance and new soft furnishings. The premium all-seasons caravan.
Research: ‘The Science Of Healthy Aging’ (Scripps)
Although growing older comes with a number of major life changes, science can help inform the things we do in the here in and now to forestall the most serious features of the aging self, promoting healthspan and not just lifespan.

- Build Muscle – Muscle mass is one the best predictors of health and longevity. Muscle tissue is known to release its own chemicals called myokines, which can have benefits that span cognition, immunity and anti-cancer activity. By performing regular, resistance-based exercise that prioritizes strength, we can delay the loss of bone density and risk of physical injuries.
- Vitamin D – Commonly known as the sunshine vitamin, vitamin D is in fact a critical hormone that helps maintain healthy bones, boost our immune system and improve our cardiovascular function. With age, the production of vitamin D in the skin can become less efficient, so if we don’t spend enough time outdoors, our risk of vitamin D deficiency may increase.
- Neurodegenerative Diseases – One of the most unsettling aspects of aging is the potential for neurodegenerative disease. These conditions are increasingly prevalent in those with diabetes, suggesting that the brain’s blood flow and energy supply may be compromised. Research indicates that regular physical exercise, a healthy whole foods diet and staying intellectually active could at least slow the rate of decline.
- Mindfulness – As we get older, major arteries can become thicker and less flexible, leading to increased blood pressure and undue strain on the heart. A regular mindfulness practice such as yoga or meditation has been shown to stem the release of stress hormones like cortisol and adrenaline. By freeing us from this “fight-or-flight” state, this habit can improve blood flow and reduce the risk of heart attack and stroke.
- Stay Social – As social animals, maintaining a strong sense of community and close personal relationships into old age are underestimated contributors to longevity. While social isolation in seniors can result in significant physical and mental decline, research suggests that close loved ones offer important emotional support and behavioral modifications that can overcome periods of high stress.
- Metabolism – “My metabolism is slowing down!” That’s what we often hear, as the aging body becomes less effective at using energy, placing us at risk of obesity and type 2 diabetes. By maintaining our muscle mass and reducing sugar consumption, we can support hormonal health, preserve our metabolism and keep our vitality into those advanced years. As scientists continue to find ways to extend our lives, paying attention to these keys to healthy aging can help increase the quality of those extra years.
Politics: Biden’s China Doctrine, South Africa, Carbon Border Taxes
A selection of three essential articles read aloud from the latest issue of The Economist. This week: Biden’s new China doctrine, a jailed ex-president won’t go quietly in South Africa (8:44), and carbon border taxes (14:32).