Costa Rica Solar Ovens- In the North Pacific area of Costa Rica is this small community centre. La Casa Del Sol trains and teaches women about recycling, environmental care, farming and solar energy. It is the Sun's power that is the focus here, with very practical applications. Turtle Tracking- They've managed to live on the planet for over one hundred million years, but today turtles are highly endangered. The zoological society of London, assisted by conservation groups in Mozambique, has been tracking green sea turtles in the ocean, hoping to safeguard their future. Senegal Recycling- At rubbish dumps around the world, one man's rubbish becomes another's livelihood. At this dump in the republic of Senegal, aluminium cans are collected for sale to recyclers. Yesterday's throw away item is about to be transformed into a handcrafted collectible. In the capital city, Dakar, where poverty is widespread, enterprising locals turn discarded materials into colourful toys, furniture and pieces of art. Coral Sea Sharks- In a world where coral reefs are disappearing 5 times faster than rainforests, Australia's Coral Sea is a treasure trove of precious jewels. Covering a massive 800,000 square Kilometers, almost half of which makes up the Great Barrier Reef, it comprises a series of spectacular, mountainous coral reefs, and a thriving marine environment. But increasingly it is at risk from human activity. Environmental organization, WWF, has called on the Australian government to declare the entire Coral Sea region a marine protected area. House Of The Future- Imagine taking a peek into the future. What will your eco-account balance be? In the red? Or in the green? At Belgium's Living Tomorrow exhibition, the house of the future gave visitors a sneak preview. Russian Permafrost- In a remote corner of Siberia, the heat of climate change is having a visible impact. For the first time in tens of thousands of years, Siberia's frozen land, the permafrost, is thawing. At this area, known as Wind Swept Cliff, huge ice wedges have been exposed by the thaw. The wedges are normally covered by vegetation, but as the ice melts, the solid land around it turns into mud and subsides, causing trees to fall over, and exposing the ice wedges. There are fears the thawing of the permafrost, could have dire consequences. Tide And Wave Power- Renewable energy sources now account for four per cent of power generation in the UK, a figure the government is keen to increase. On the Isle of Wight, experts gathered recently to discuss how to harness the power of the sea to create energy.