Green World

Hi everyone, Welcome back to another post. Today we’ll be talking about deforestation and its impacts on our earth. Deforestation, the widespread clearance of natural forests, has been happening for thousands of years. One example is Western Europe, where, two millennia ago, 80% of the land was cloaked in dense forest cover. However, over time, a significant portion of this green expanse was sacrificed to create room for crops, livestock grazing, and as a source of fuel and building materials. Presently, a mere 34% of Western Europe retains its woodland. Today, the tropics deal with the brunt of deforestation. Activities such as mining, agriculture, road construction, and the establishment of vast cattle ranches drive the mass clearance of tropical rainforests. This results in the release of huge amounts of carbon dioxide into the atmosphere, exacerbating the global climate crisis. The consequences come in two waves: first, the reduced number of

Hi everyone, So today we're talking about communication in the natural world. As humans, we tend to think that we are superior to the rest of the organisms on this planet. We also think that we are the only ones who can communicate. While it's true that we probably have the most complexe form of communication, not one but thousands of languages, we are by far not the only ones that communicate on a daily basis. First of all, we need to define communication. Most people only think of speaking and writing (emails, texts, letters, and so on). But communication is much more than that. The word 'communication' describes the transfer of information from one organism (sender) to another organism (receiver) or multiple organisms (receivers). Different species go about doing this in many different ways. Animals communicate through sounds, visuals, chemicals, movements, touch, scents, electrical signals or a combination of the above. Sound

Hi everyone So today we are talking about echolocation. This is the skill that over one thousand species depend upon to navigate, hunt and avoid obstacles in pitch blankness. In dolphins and whales, they push air through nasal passages to create the sound which is then concentrated in the melon, which is a blob of fat in the forehead. The sound is made clearer. When the sound hits something, it gets reflected and the echo is then sensed by the dolphin or whale’s lower jaw. It passes through the jaw to the ear and the brain determines size, density, distance, direction and speed. By doing this some species could detect a golfball a football pitch away. They can also tell different fish species apart. In most bat species, the sound is made in the larynx and is so high-pitched that it is above the human hearing range. It can be up to 140 decibels loud, meaning that the bats have to temporarily ‘turn off’ their hearing before quickly turning it b

Hi everyone, Today we're talking about beavers and their effects on the surrounding ecosystems and environments. 'Beaver' referres to two species in the genus Castor . They are found in North America, Europe and Asia and are the largest rodents in those places and the second largest rodents in the world. Beavers grow up to 80 cm long with a flat, paddle-shaped tail up to 45 cm. They have a small head, large incisor teeth and fur lined lips to avoid inhaling water while cutting and transporting branches underwater. They weigh 16-30kg and are nocturnal. Beavers live in streams, rivers, marshes, ponds and lakes where they construct dams. These have earned them the title 'ecosystem engineers' but we'll talk about that later. The dams are constructed with branches, sticks and rocks. They create a calm pool with a higher water level on one side. Beavers make their homes (lodges) in these calm pools. Beaver dams are both have bot

Welcome back to Green World! Today we have a quiz that will test your knowledge about the greenhouse gas effect and its effect on the world. Enjoy! Questions True or False? Carbon dioxide is the only greenhouse gas. Burning fossil feuls mostly emits ... a) methane b) nitrogen c) carbon dioxide True or False? One ppm (part per million) is the same ratio as one drop of water in 13 gallons of liquid. Which one of these is not a greenhouse gas? a) carbon dioxide b) nitrous oxide c) oxygen True or False? Some greenhouse gases are only in the atmosphere for a few years. Which sector has the highest greenhouse gas emissions in the US? a) Agriculture and other land use b) Electricity c) Industry True or False? 94% of global methane emissions come from human activities. Which sector has experienced the highest increase in