Tag «earth»

Human Influence on Global Droughts Goes Back 100 Years

Human Influence on Global Droughts Goes Back 100 Years

Ancient trees are revealing new findings about human-caused drought NASA has only been studying soil moisture from space since 1980 Which meant that scientists needed an older, but reliable record to understand our past climate Researchers can use tree data to map droughts as far back as 1400 The result? We now know that greenhouse …

The Water Cycle

♫MUSIC♫ ANNE THOMPSON: All the water on Earth today, every drop, is all the water there has ever been on the planet. Freshwater is actually millions of years old. The same water, flowing in a continuous loop- falling as rain and snow from clouds to the Earth’s surface, running in rivers, pooling in ponds, flowing …

An introduction to climate change in 60 seconds

An introduction to climate change in 60 seconds

As the sun’s rays reach the Earth’s surface, some are absorbed and re-emitted as heat. Greenhouse gases such as water vapour and carbon dioxide absorb and re-radiate some of this heat. Increased amounts of greenhouse gases in the atmosphere mean more heat is trapped, warming the Earth. Human activities, especially the burning of fossil fuels, …

The Greenhouse Effect . Learn English

The Greenhouse Effect . Learn English

The greenhouse effect is the process where heat from the Sun gets trapped in the Earth’s atmosphere causing the planet to get hotter. In this video, we will learn about the greenhouse effect its causes and possible solutions. The greenhouse effect gets its name from the building which gardeners use to grow plants that like …

Why Mars Died, and Earth Lived

The Mars rover, Curiosity, is the latest in a long line of missions to Mars… Landers sent to scoop its soil and study its rocks, orbiters sent to map its valleys and ridges. They are all asking the same question. Did liquid water once flow on this dry and dusty world? Did it support life …

9 Events That Will Happen Before 2050!

9 Events That Will Happen Before 2050!

From building cities on Mars to the extinction of chocolate, these are 9 events that will happen before 2050. 9. Colonization of Mars No, we’re not talking about an upcoming sci-fi blockbuster – the colonization of Mars is a real possibility in the foreseeable future. Conditions on the surface of Mars are closer to the …

Leonardo DiCaprio’s Powerful Climate Summit Speech

Thank you, Mr Secretary General, your excellencies, ladies and gentleman, and distinguished guests. I’m honored to be here today, I stand before you not as an expert but as a concerned citizen, one of the 400,000 people who marched in the streets of New York on Sunday, and the billions of others around the world …

Save Tree Save Earth Awareness For Play School Kids

Save Tree Save Earth Awareness For Play School Kids

Ma Sarada Day School raised the slogan with the faces of children They celebrated the Banomohotsab day Children walked out of the school to make people aware The procession began with the children from school Guardians also got involved with them A teacher stepped in to promote awareness with microphone in front of the children’s …

The Science Behind Global Warming (Documentary)

The Science Behind Global Warming (Documentary)

What is global warming? How did it start? How will it continue? What will happen to humanity? Will one day we’ll be gone due to our own ignorance? Global Warming is the continuing rise in the average temperature of Earth’s climate system Through the sudden use of factories, gas consuming cars and and other ambitions …