Part 2 highlights the negative aspects of tourism, but also shows ways in which tourists can contribute to the local economy and travel more sustainably overall.

Who doesn’t like vacationing in beautiful and fascinating countries – like those of Southeast Asia, perhaps? Tourism is an important economic factor for many developing and emerging economies, but it can often also create problems for the environment and the local population.

The heute-show is Germany's answer to The Daily Show in the US. In this episode, host Oliver Welke and "expert" Tina Hausten (played by comedian Martina Hill) look at ways in which Germany isn't exactly a role model when it comes to climate policy.

Produced by The World Wildlife Found WWF, this clip featuring music by German singer Clueso reminds us of the amount of plastic going into our oceans – something we must not forget in the course of our day-to-day lives.

Produced by The World Wildlife Fund WWF. Anton Reyst travels to Hudson Bay in the north of Canada to get a firsthand look at the effects global warming has had on the landscape and wildlife there.

Produced by The World Wildlife Found WWF. Here are some more tips for reducing the amount of plastic you use on a daily basis. It's not just food that comes wrapped in excess plastic, but cosmetics and DVDs as well.

Produced by The World Wildlife Found WWF. Here are ten simple tips to help reduce the amount of plastic you use in your everyday life. Small actions can add up to a lot less plastic!

Germany is not a big enough country to devote all of its land to creating renewable energy – but there is another place with vast expanses of empty space and limitless sunshine.

In this video, physicist and author Harald Lesch talks about how Germany could phase out coal and nuclear power completely and still meet all of its energy needs.

Sarah shows us four essential items that individuals can use to help the environment.

The North Sea is an unpredictable and mysterious marine habitat, teeming with life. Join marine biologists Florian Graner and Natali Tesche-Ricciardi on an exciting adventure!

Winter has finally hit Berlin, causing traffic chaos and a lot of complaining from the locals, but actually some people seem to prefer the snow! (video copyright dpa)