Global Environmental Issues

Acid rain and its impact

Introduction

  1. Acid rain refers to precipitation (rain, snow, or fog) that contains higher levels of acidic components, such as sulfuric acid and nitric acid.
  2. It is caused primarily by the emission of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere.
  3. Acid rain has both natural and anthropogenic sources, with human activities being the major contributors.

Causes of Acid Rain

  1. Combustion of foss

Climate change and global warming

Introduction

  1. Climate change refers to long-term alterations in temperature, precipitation, and other atmospheric conditions.
  2. Global warming is the rise in Earth's average surface temperature due to increased concentrations of greenhouse gases (GHGs).
  3. These issues are closely linked and have far-reaching implications for ecosystems, weather patterns, and human life.

Causes of Climate Change and Global Warming

  1. Excessive emission of carbon dioxide (CO2) from burn

Ozone layer depletion: Causes, effects, solutions

Introduction

  1. The ozone layer is a protective shield in the Earth's stratosphere that absorbs harmful ultraviolet (UV) radiation.
  2. Ozone layer depletion refers to the thinning and reduction of ozone concentration, primarily over polar regions.
  3. The phenomenon of the "ozone hole" was first observed in the Antarctic region in the 1980s.

Causes of Ozone Layer Depletion

  1. Release of chlorofluorocarbons (CFCs) from aerosols, refrigerators, and air conditioners.
Global Environmental Issues