We are all seeing rather less of the Sun. Scientists looking at five decades of sunlight measurements have reached the disturbing conclusion that the amount of solar energy reaching the Earth's surface has been gradually falling. Paradoxically, the decline in sunlight may mean that global warming is a far greater threat to society than previously thought.
"Eighty percent of us now live in an urban setting, and I think that the solution to our environmental problems is not to say 'we've got break down cities and get everybody back to the land' – that would be disastrous – but we have to make cities our major habitat…we have to make them more in balance, I think, with the rest of the things that keep us alive." David Suzuki Cities are where most Canadians live. And, as we head into the future, how we adapt to the needs of expanding cities will have a huge impact on their livability. Food, land use, housing, energy, waste – how we tackle these issues will determine whether our cities evolve, or whether they decline. In a new instalment of Suzuki Diaries, David and his daughter, Sarika, set out to discover whether some of Canada's biggest cities are ready for the challenges of the future.
Between the blue sky above and the infinite blackness beyond lies a frontier that scientists have only just begun to investigate. In "At the Edge of Space," NOVA takes viewers on a spectacular exploration of the Earth-space boundary that's home to some of nature's most puzzling and alluring phenomena: the shimmering aurora, streaking meteors, and fleeting flashes that shoot upwards from thunderclouds, known as sprites.
The Mt. Erebus team has trouble landing at one of their sites and when they do their gear glitches from the cold. Meanwhile, the USS Coast Guard gets stranded from engine failure. Another team struggles to protect their 80,000 drone from a crash landing due to extreme wind. The Ross Ice Shelf Team digs themselves out after enduring a major storm and heads toward their target research spot.
In the final episode of the series, Anita Rani investigates the tsunami of single-use plastic that parents pick up in the form of give-away toys. It turns out that McDonald's are the largest toy distributor in the world, handing out over 1.4 billion plastic toys per year worldwide. They claim on their website that they are recyclable, but a visit to Simon Ellin, the CEO of the Recycling Association, makes it very clear that while that may be true in theory, in reality it’s not that simple. Meanwhile, Hugh is in Scotland. He’s learnt that at the same time as the public are trying to reduce the amount of plastics in their lives, the plastics industry has big plans to increase plastic production by 50% before 2040. To find out more, he visits the INEOS factory in Grangemouth, owned by the richest man in Britain, where they produce a staggering 60-70 billion tiny plastic pellets every day.