Climate change

Climate change

1. Causes

   • How it can be studied from the past?
     • Pollen
       • It's made by thousand of layers of soil. Scientist can determine the climate by taking a sample of the ground and analyze it. By that, it would show what type of plants grew there and it can inferred the climate of the area.
     • Ice Cores
       • Are huge pieces of ice which have a layer for each year. By the characteristics the ice core like; aerosols, carbon dioxide bubbles, ruptures, and others, is the way we can know the changes it had.
     • Tree rings
       • Every tree grows in summer a new layer called ring. According of the features it has, we can know if was a wet or dry season.
   • The natural factors
     • Movement of Continents: When the continents move, it latitude and altittude changes , producing it to be closer or apart from the equator, making it to be warmer or cooler.
     • Earth's position: Depends on the location of the planet towards the sun, it can recieve more or less sunlight.
     • Volcanic Activity: If there is an eruption, it makes aerols reach the atmosphere and never leaving as an effect, the solar radition never get to us making cold temperatures.
     • Solar Energy: The sunlight regular output changes in being more or less, causing a hotter or colder climate.

2. Effects

   • Greenhouse Gas
   • Global Warming: The increase of the atmosphere' temperature by the heat trapped, it produces; melting of glaciers, high sea levels, warmer climates, etc…

3. Vocabulary

   • Aerosol: Are particles or drops in gases that stay in the air.
   • Sunspot: It's the amount of dark places in the first layer of the sun.

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