How much is the earth worth


The sun is the central body of our solar system and the source of all life. It is already assumed that it has been shining with its current brightness for 5 billion years. The fossil energy reserves also have their origins in solar energy. Most regenerative energy sources are also directly or indirectly derived from solar energy. The sun consists of about 80% hydrogen, 20% helium and only 0.1% other elements. The following table shows the most important data of the sun compared to the earth.

Comparative data from the sun and earth
Diameter1,392,520 km12 756 km
scope4,373,097 km40 075 km
Surface6,0874· 1012 km25,101· 108 km2
volume1,4123· 1018 km31,0833· 1012 km3
Dimensions1,9891· 1030 kg5,9742· 1024 kg
medium density1.409 g / cm35.516 g / cm3
Gravity acceleration274.0 m / s29.81 m / s2
Surface temperature5 777 K288 K
Midpoint temperature15,000,000 K6 700 K
Radiance / irradiance63 110,000 W / m21 361 W / m2
Distance earth-sun1,5· 108 km

Extensive tables, graphics and information provide facts and figures on renewable energies, energy use, greenhouse gas emissions and climate protection. more...

The anti-wind power movement has long been warning of harmful infrasound from wind power plants and the ZDF is producing a sensational program on the subject. We do the fact check. Do wind turbines really emit dangerous infrasound or is that a pseudo-argument with which completely unfounded fears are to be stoked in order to throw sand in the gears of wind energy expansion and the energy transition? more...

Can we really still save the climate? The climate crisis requires many changes. But many cannot imagine this. Why is that? What shapes us What role does the subconscious play? What actually is cognitive dissonance? Why are positive vision and positive communication so important? We clarify these questions and together with you we will make the seemingly impossible possible! more...

Ă–zden Terli, Stefan Rahmstorf and Volker Quaschning are once again talking plain language about climate. The guest is Carla Reemtsma from Fridays For Future. more...