Video explainer: Shady dealing in endangered wildlife 15.06.2019 | 03:12 mins.

The sale of illegal wildlife has grown into a $20 billion business along with narcotics, arms sales and human trafficking. Online sales make wildlife trafficking even easier.

Video explainer: Green cities, better climate 26.04.2019 | 02:34 mins.

At least 70% of global CO2 emissions are connected to city living. The greener a city is, the more carbon dioxide is absorbed and oxygen produced. Trees and plants also help regulate the temperature.

Video explainer: Why one third of our food goes to waste 24.04.2019 | 03:02 mins.

Theoretically, there is enough food in the world to ensure nobody has to go hungry. But huge amounts of produce are lost between the field and the plate.

Soil: How it works 10.12.2018 | 02:34 mins.

There's a lot more to that brown stuff under your feet than meets the eye! Soil is the link between the air, water, rocks, and organisms — and its health is vital in keeping ecosystems alive.

Video explainer: Could soil save our climate? 03.12.2018 | 02:44 mins.

Soil is second only to the ocean in the service it provides as a CO2 store. When in the ground, carbon enriches the soil and is good for the climate, but misuse of land has already led to the loss of large stores.

Video explainer: Is 'superfood' good for the environment? 27.09.2018 | 02:19 mins.

Avocado, chia seeds, quinoa — these superfoods are meant to help us be healthier, happier and fitter. And demand for them is huge. But is it good for people and the planet when a grain or fruit suddenly becomes trendy?

Video explainer: What is a forest and what is it for? 13.09.2018 | 02:31 mins.

Many peoples’ lives depend on the forest and the animals within, but all of us need the forest. It’s crucial to the water cycle, helps prevent against landslides and erosion and is an active player in climate protection.

Video explainer: What happens to my empty plastic bottle? 13.02.2018 | 02:05 mins.

Plastic bottles are easy to buy, but hard to get to get rid of. They end up as trash on the street or in nature, are recycled into products like fleece clothing – and sometimes enter our food chain. We need alternatives.

Video explainer: How harmful are plastic bags to the climate? 20.12.2017 | 02:03 mins.

Every year more than 600 Billion plastic bags are manufactured worldwide. Manufacturing them requires large amounts of energy, so how damaging are they to our climate?

Video explainer: Global warming - Our changing world 08.11.2017 | 03:24 mins.

With help from animated graphics and satellite images, we show what’s behind climate change – and what it’s doing to our planet, which is falling victim to a vicious cycle of population growth, melting glaciers, rising sea levels and desertification.

Video explainer: What is the greenhouse effect? 16.07.2016 | 02:02 mins.

Our climate is changing, pushing up the planet's temperatures, causing ice to melt at the North and South Poles, and sea levels to rise as a result. One reason is the greenhouse effect. But what is it?

Video explainer: Does Saharan dust impact climate change? 23.11.2015 | 02:24 mins.

What impact does dust from the Sahara Desert have on the global climate? Storms carry the dust particles up to seven kilometers into the air. Most of the particles from the Sahara eventually descend over the Atlantic, with some surprising effects.

Video explainer: How harmful to the climate is transporting food by air? 30.10.2015 | 02:21 mins.

Video explainer: Is climate change making us ill? 11.08.2014 | 02:25 mins.

Video explainer: If the bee becomes extinct, will humans follow? 27.01.2014 | 02:55 mins.

Video explainer: Earth 2100 - What happens if we don’t change our ways? 25.11.2013 | 01:54 mins.

More than 34 billion tons of carbon dioxide were emitted into the atmosphere last year. Despite all warnings, the amount is growing each year and our climate keeps changing. By some estimates, global temperatures will rise as much as 6 degrees Celsius by the end of the century.

Video explainer: Is climate change a security risk? 24.10.2013 | 02:17 mins.

Video explainer: What effect does climate change have on animals? 30.09.2013 | 02:19 mins.

Video explainer: Whatever happened to the hole in the ozone layer? 27.05.2013 | 01:42 mins.

The damage caused by chlorofluorocarbons (CFCs) came to light in the 1980s when scientists discovered a huge hole in the ozone layer.

Video explainer: What is the environmental impact of cruise ships? 20.05.2013 | 02:15 mins.

More than twenty million people go on cruises each year. Cruise ships burn heavy oil full of pollutants, which are emitted unfiltered into the atmosphere. It does not have to be this way. If the vessels burned diesel instead, the emissions would be significantly reduced, though the fuel costs would rise.

Video explainer: Can CO2 be stored? 14.05.2013 | 02:18 mins.

Video explainer: 100% Green Energy — Is it feasible? 07.03.2013 | 02:02 mins.

Video explainer: How climate-damaging is a climate summit? 27.11.2012 | 02:23 mins.

Video explainer: What can farmers do to protect the environment? 24.09.2012 | 01:49 mins.

The impact of climate change on international food production has long been underestimated. New studies looking at the effects of extreme weather scenarios on global food prices in 2030 project that the consumer price of corn and other grains could increase by as much as 140 percent.