近年英國氣候越發極端，颶風頻頻來襲，2013年冬天更錄得有史以來最高的降雨量。超強寒流的來襲，亦曾令英國以往的冬天錄得攝氏零下22度的低溫。 　　英國廣播公司（BBC）科學紀錄片《地平線》（Horizon）系列的《天氣反常了？》，由物理學家Helen Czerski和氣象學家  John Hammond主持，為你詳細講解高速氣流（jet stream）與英國反常氣候的關係。

大堡礁是世界上最大的珊瑚礁，覆盖澳大利亚东北海岸超过2000公里的水域面积。每年的夏天，这里都将上演生命诞生的壮丽奇观：雌性和雄性刺尾鱼以闪电般的速度游向水面产卵；在星光闪闪的夜空下，成千上万的绿海龟同时来到岸边产卵；而高潮是100多种珊瑚在15分钟内一次性全部产卵的罕见景色。

Dr Michael Mosley seeks to establish the truth about meat. Every year, humans raise and eat 65 billion animals - nine animals for every person on the globe. In this eye-opening documentary, Michael examines the impact that this is having on the planet and finds out what meat eco-friendly carnivores should be buying. Is it better to buy free-range organic or factory-farmed meat?...

Dr Michael Mosley seeks to establish the truth about meat. Are those barbecue favourites like burgers and sausages really that bad? Should we all go vegetarian instead? 　　Michael uncovers the latest science and puts it to the test on a high-meat diet. Will eating beef and bacon every day be bad for him? What meat should a healthy carnivore be buying?