Causes of climate change:
Global warming
Global warming is basically the increase in greenhouse gases. Greenhouse gases include:
- carbon dioxide (CO2)
- methane
- nitrous oxide
- fluorinated gases
Greenhouse gases absorb some of the sun's rays, because they are reflected back. By doing this, these gases help in many life forming processes. But because of many human activities, like burning of fossil fuels etc., the amount of greenhouse gases is increasing beyond the normal level. So, these gases are absorbing more and more heat. This is increasing the temperature of the Earth. This phenomena is known as global warming. Because of more than average temperature, normal climate and weather patterns are affected.
Ozone layer depletion
Ozone layer depletion is basically the depletion of ozone layer, due to human activities. Ozone layer is a layer of ozone gas. It protects us from the harmful UV rays of Sun. The most important gas contributing in this depletion of ozone layer is Chlorofluorocarbon, which is released from our refrigerators and air conditioners. Because of this depletion of ozone layer, UV rays can enter the Earth's atmosphere and cause many diseases, more specifically, cancer and other skin disorders.
Natural and anthropogenic
In the history of Earth, climate has changed many times. But they were mainly natural causes like Earth's tilt towards the Sun, energy release from Sun, natural cooling and warming of oceans etc. These factors are still applicable today, but today's climate change is mainly anthropogenic. Anthropogenic causes include the burning of fossil fuels, deforestation, aerosol release, land alterations etc. Anthropogenic causes of climate change have accelerated really quickly after the industrial revolution.
Answer:
For this exercise we need to complete tehs entences with correct form of the preterito imperfecto.
Explanation:
The subjunctive form is used to express hypothetical, unreal situations or to express recommendation, order, instruction or imperative. This tense is used to talk about conditionals 2 and 3, imaginary situations in present and past
1) Gasta el dinero del partido como si fuera suyo. (This is an imaginary situation in present, money is not his)
2) Quieren seguir subiendo los impuestos como si (odos nosotros tuviéramos mucho dinero. ( (This is an imaginary situation in present, we do not have a lot of money)
3) Me miró como si no entendiera lo que yo le estaba diciendo (This is an imaginary situation in present, he/she uinderstand what is happening)
4) Hablan de conseguir la paz como si fueranespecialistas en política internacional (This is an imaginary situation in present, they are not specialists in politics)
5) En la reunión del partido, todos estábamos preocupados como si fuéramos a perder las elecciones (This is an imaginary situation in past, .
6) Tratan a los ecologistas como si no les importara el medio ambiente. (This is an unreal situation)
