Fossils and Their Nests Determine Climate Change

Introduction Zazula and Duane (1) examines AGS (AGS) fossils and their nests to determine the past climate change before 24, 000 - 29450 years (late Pleistocene) in Siberia, Alaska, especially Yokun, Canada It reports the importance of things. According to territory Elias, large extinct animals are generally thought to be superior to studies like mammoths, which are large animal mammals of Pleistocene (2). Rodents, or AGSs are predators of large animals and are therefore useful indicators of past climate.

Paleontologists use fossils to judge changes in the climate and landscape of the earth over millions of years. For example, I found a tropical palm tree fossil in Wyoming, where the climate is cool today. These fossils indicate that the climate of the area has cooled. Paleontologists have found fossil oysters today in Kansas and other parts of the inland area. These fossils reveal that shallow sea was discovered throughout these areas. Fossils also provide evidence to support the theory of continental drifting - the position of the continent has changed for hundreds of millions of years. Paleontologists have found similar fossil dinosaurs in all modern continents. Similar species are unlikely to evolve on different continents. Therefore, most earth scientists believe that when the dinosaur first appeared (about 230 million years ago), almost the entire Earth was combined as a single supercontinent.

The massive use of fossil fuels is a major factor in human-induced climate change. The proportion of low carbon energy is now the same as decades ago. Fossil fuels dominate our energy system, total energy consumption exceeds 80%. Changes in deforestation and other land use have also contributed greatly, but the use of our large amounts of fossil fuels has brought us disastrous damage to the climate system. In order to keep the temperature below 2 ° C, we can further discharge 85.6 billion tons of carbon dioxide (CO 2). Climate change efforts to reduce greenhouse gas emissions to 2030 is the first step, but recent analyzes have shown that they are not enough (Canadell and Smith, 2017 http: // bit .ly / 2jRNjIK)