Permafrost thaws as climate warms

Great Moments in Science Thawing permafrost could release an enormous amount of carbon dioxide and methane into the atmosphere. And the more it warms, the more greenhouse gases are released, writes Dr Karl.morePermafrost thaws as climate warms
Tuesday, 04 December 2012Tags: climate-change, earth-sciences, greatmomentsinscience, drkarl, podcasts

Arctic meltdown not caused by nature

Great Moments in Science Rapid loss of Arctic sea ice - 80 per cent has disappeared since 1980 - is not caused by natural cycles such as changes in the Earth's orbit around the Sun, says Dr Karl.moreArctic meltdown not caused by nature
Tuesday, 27 November 2012Tags: climate-change, astronomy-space, greatmomentsinscience, drkarl, podcasts

Do you need eight glasses of water a day?

Great Moments in Science We're told to drink eight glasses of water a day, but what's the evidence behind this advice? Dr Karl hoses down a popular myth. moreDo you need eight glasses of water a day?
Tuesday, 20 November 2012Tags: diet-and-nutrition, biology, greatmomentsinscience, drkarl, podcasts

So much food, so much waste

Great Moments in Science We waste about 40 per cent of our food on its journey from the farm to our fork. Dr Karl dishes out some advice about how to cut down food waste.moreSo much food, so much waste
Tuesday, 13 November 2012Tags: environment, recycling-and-waste-management, greatmomentsinscience, drkarl, podcasts

Leaning left makes Eiffel Tower look smaller

Great Moments in Science Our bodies can play lots of tricks on our brains. Dr Karl puts a different slant on some award-winning research.moreLeaning left makes Eiffel Tower look smaller
Tuesday, 06 November 2012Tags: neuroscience, psychology, greatmomentsinscience, drkarl, podcasts

What's Nobel about stem cell research?

Great Moments in Science Two scientists were recently awarded Nobel Prizes for their research on adult stem cells. Dr Karl explains how they created renewable cells that could change our lives.moreWhat's Nobel about stem cell research?
Tuesday, 30 October 2012Tags: medical-research, research, stem-cells, greatmomentsinscience, drkarl, podcasts

What are stem cells?

Great Moments in Science Do you know the difference between an embryonic stem cell and an adult stem cell? Dr Karl dissects the controversial world of stem cell science.moreWhat are stem cells?
Tuesday, 23 October 2012Tags: medical-research, research, stem-cells, greatmomentsinscience, drkarl, podcasts

Fast food's tasty tricks keep you eating

Great Moments in Science The big food industry manipulates taste and texture to make food irresistible. But some simple rules can help you fight the urge to overeat, says Dr Karl.moreFast food's tasty tricks keep you eating
Tuesday, 16 October 2012Tags: diet-and-nutrition, obesity, greatmomentsinscience, drkarl, podcasts

Fast food designed to keep you hungry

Great Moments in Science Dr Karl takes a bite out of the 'big food industry' and the sneaky science they use to make you overeat.moreFast food designed to keep you hungry
Tuesday, 09 October 2012Tags: diet-and-nutrition, obesity, greatmomentsinscience, drkarl, podcasts

Secrets of ribbon curling revealed

Great Moments in Science What's the best way to curl a ribbon? Dr Karl applies his thumb - and some physics - to the perfect bow.moreSecrets of ribbon curling revealed
Tuesday, 02 October 2012Tags: physics, greatmomentsinscience, drkarl, podcasts