what marked the great transformation of the earth’s environment?

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The Ordovician period was a time when life flourished.

The oldest known hominid was Sahelanthropus tchadensis, which lived about 7 million years ago. Learn about what we’ve accomplished and failed to accomplish in the last 50 years, and explore some of the key environmental problems we still have yet to solve.

Learn about global activism that have changed the ways we interact with our precious planet for the better.

“What we question is the philosophy, and usefulness. The issues facing Earth are big, but imagine the difference we could make if we all took steps to address them. We are living in the Anthropocene age, in which human influence on the planet is so profound – and terrifying – it will leave its legacy for millennia. All life needs energy to survive, and the biggest source of energy for life on Earth is the Sun. Pollution is one of the most serious problems facing the planet, but it may be one of the easiest to overcome. The question of whether humans’ combined environmental impact has tipped the planet into an “Anthropocene” – ending the current Holocene which began around 12,000 years ago – will be put to the geological body that formally approves such time divisions later this year. aims to showcase some of Earth’s finest non animal life-forms and their brilliant ecologies. The greenhouse gas emissions from human activities are changing the face of Earth. Who are some of the past and present voices in the fight to protect our planet? Nobody knows exactly when life began. For one thing sex may have evolved for the first time. The first apes appeared in Africa around 25 million years ago. That’s not to say I or any of my colleagues are climate change deniers or anything of that kind, we fully recognise the points: the data and science is there. Politicians and scientists have had their say, but how are writers and artists responding to this crisis? Waters said that if the ICS was to formally vote in favour of making the Anthropocene an official epoch, its significance to the wider world would be in conveying the scale of what humanity is doing to the Earth. Almost immediately after the dinosaurs were wiped out, mammals evolved the ability to nourish their young inside their wombs using a placenta, just like modern humans. The oldest confirmed fossils, of single-celled microorganisms, are 3.5 billion years old. These microbes pumped out oxygen as a waste product, creating the oxygen-rich atmosphere we have today. This second Snowball period may have triggered the evolution of the first complex animals. It's everything that makes up our surroundings and affects our ability to live on the earth—the air we breathe, the water that covers most of the earth's surface, the plants and animals around us, and much more. He said that the scale and rate of change on measures such as CO2 and methane concentrations in the atmosphere were much larger and faster than the changes that defined the start of the holocene. Explore the major threats to biodiversity.

Just as the reptiles were flourishing, life on Earth faced perhaps its greatest challenge. With plants well-established on land, the next step was for animals to move out of the water.

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