Sperm counts Copyrighted image Icon Copyright: Production team article icon

Nature & Environment

Sperm counts

Getting to grips with the numbers behind the man's part of the reproductive system. THIS ARTICLE CONTAINS FRANK DISCUSSION OF SEXUAL AND REPRODUCTIVE SCIENCE

Article
Groundwater Copyrighted image Icon Copyright: Used with permission free course icon Level 2 icon

Nature & Environment

Groundwater

Water is arguably the most important physical resource as it is the one that is essential to human survival. Understanding the global water cycle and how we use water is essential to planning a sustainable source of water for the future. In the UK there are areas where water supplies are limited, as shown by recent droughts. Globally, there are many reas that do not have enough water to support the current population adequately. Decisions will have to be made on the best way to use water in a world where there is climate change. Groundwater is a free course that helps you examines the options.

Free course
10 hrs
Energy resources: Solar energy Copyrighted image Icon Copyright: Used with permission free course icon Level 2 icon

Nature & Environment

Energy resources: Solar energy

Energy from sources other than fossil and nuclear fuels is to a large extent free of the concerns about environmental effects and renewability that characterize those two sources. Each alternative source supplies energy continuall, whether or not we use it, and most have their origins in energy generated outside the Earth, yet the potential of each is limited by its total supply set against its rate of use. The Sun will radiate energy until it ceases thermonuclear fusion, in around 5 billion years. This free course, Energy resources: Solar energy, explores the Sun as a potential source of usable energy.

Free course
2 hrs
Water use and the water cycle Copyrighted image Icon Copyright: Used with permission free course icon Level 2 icon

Nature & Environment 

Water use and the water cycle

Water is arguably the most important physical resource as it is the one that is essential to human survival. Understanding the global water cycle and how we use water is essential to planning a sustainable source of water for the future. Water use and the water cycle is a free course designed to give the student an introduction to the subject.

Free course
10 hrs
I Bought A Rainforest - Episode 3 Copyrighted image Icon Copyright: Charlie Hamilton James video icon

Nature & Environment 

I Bought A Rainforest - Episode 3

Nine months on and the project has hit rock-bottom. Charlie has to decide what to do next. In our clips, the forest catches fire - and Charlie uses a halluciogenic brew to get a clearer head.

Video
5 mins
I Bought A Rainforest - Episode 2 Copyrighted image Icon Copyright: Charlie Hamilton James video icon

Nature & Environment 

I Bought A Rainforest - Episode 2

Torn between his love of the forest and a growing awareness of how hard life can be, Charlie's loyalties are dramatically split. In our video clips, Charlie discovers the perils of illegal gold mining, and introduces his wife to some giant otters.

Video
10 mins
I Bought A Rainforest - Episode 1 Copyrighted image Icon Copyright: Charlie Hamilton James video icon

Nature & Environment 

I Bought A Rainforest - Episode 1

Charlie's dream was soon shattered when he got to the land he bought over the phone. And watch Charlie get to know a local resident - a venomous snake.

Video
5 mins