Faced with the consequences of climate change with prolonged drought, food shortages and conflicts over the remaining natural resources, the local population decided to plant trees, many of which are abundant. Ten years after their launch, these trees cultivate fertile land, provide food security for millions of people, fill water wells to improve water security, and provide women with new jobs and green jobs for families on real incomes. We may still be able to mitigate the worst effects of climate change, but only if we manage to reduce the amount of greenhouse gases entering the atmosphere and learn to adapt to the changes that are already underway. In the United States, organisations such as The Nature Conservancy tackle climate change through natural solutions: planting trees, protecting grasslands, restoring wetlands and improving agricultural practices and soil health. Greenhouse gases released into the atmosphere heat the air and change the climate; this is what we call “global warming”, both locally and globally. Your local climate may have colder winters with stronger blizzards, while other areas may have heavy rains, stronger hurricanes or unbearable heat. Last year, China sent 60,000 soldiers to plant trees in Beijing Province, an area the size of Ireland, in an attempt to combat some of the smog that often covers the city. That’s why everyone was so shocked by the massive combustion of the Amazon rainforest that it was compared to the lungs of planet Earth, which balanced the carbon and provided a source of clean air. Here, where temperatures are rising faster than anywhere else in the world, the Great Green Wall symbolizes what can be done to support the global goals of sustainable development. But we humans are also changing the climate on a large scale with our cars and trucks, with our heating and cooling systems, our planes, our kitchens, all using fossil fuels: coal, oil and gas. Trees have an almost magical ability to extract carbon dioxide from the air and capture it by releasing oxygen into the atmosphere. But did you know about the Great Green Wall of Africa? This initiative, which extends over 6,000 miles along the Sahara, will eventually become the largest living structure in the world. The Earth’s climate is constantly changing over a long period of time. All scientists say that the Earth’s climate is warming up. Earlier this year, one million indigenous people planted 220 million trees in one day.