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Lesson 2: Climate Change (in Hindi)
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This is course in Basics of energy and Environment which is specially design for ESE paper 1 (preliminary) those who are looking for high quality content in a precise manner in very quick time.

Kartik Bhardwaj is teaching live on Unacademy Plus

Kartik Bhardwaj
Executive in PSU ,YouTuber , Motivational speaker,6 year teaching experience, top educator in ECE catagory

U
Unacademy user
SK
Sandeep Meena from RAJASTHAN
Ak
very good knowledge sir
  1. Human Causes Increase in the level of greenhouse gases Deforestation GREENHOUSE EFFECT Naturally occurring phenomenon that is responsible for heating of Earth's surface and atmosphere. Sunlight warms the surface of the Earth. Since the earth cannot store this heat forever, the warm Earth sends energy back into space. The sunlight which hits the Earth's surface is made up of high energy ultra-violet and visible radiation. The energy emitted from the surface of the Earth is infra-red or 'longwave radiation' and is less energetic than sunlight Particles and gases in the air absorb infrared heat radiation. The gases are called greenhouse gases. They let the sunlight in, but they don't let the heat radiation from Earth back out into space. They trap the heat near the ground .The greenhouse effect is very important for life on Earth .But by putting more and more greenhouse gases into the air, humans have enhanced the natural greenhouse effect and are making the Earth warmer


  2. The Greenhouse Effect Some solar radiation is reflected by the Earth and the Some of the infrared radiation passes through the atmosphere. Some is absorbed and re-emitted in all directions by greenhouse gas molecules. The effect of this is to warm the Earth's surface and the lower atmosphere. atmosphere. Most radiation is absorbed by the Earth's surface and warms it. Atmosphere Infrared radiation is emitted by the Earth's surface Earth's surface


  3. Natural Greenhouse Effect Human Enhanced Greenhouse Effect More heat escapes into space Less heat escapes into space SUN SUN