Change in Climate | Weather Symbols and Records | Global Warming

CHANGE IN CLIMATE | WEATHER SYMBOLS AND RECORDS | GLOBAL WARMING

MEANING OF CHANGE IN CLIMATE

Change in climate (also called climate change) means a long-term change in the usual weather conditions of a place. It includes changes in rainfall, temperature, wind, and seasons over many years.

Causes of Change in Climate 

1. Burning of fossil fuels (coal, petrol, diesel)

2. Cutting down trees (deforestation)

3. Smoke from factories and vehicles

4. Bush burning

5. Gas released from waste and refuse dumps

Effects of Change in Climate 

1. Higher temperature (global warming)

2. Irregular rainfall

3. Flooding

5. Drought

6.Poor crop production

6. Spread of diseases

Ways to Reduce of Change in Climate 

1. Plant more trees

2. Avoid bush burning

3. Reduce smoke from vehicles and generators

4. Use renewable energy (solar, wind)

5. Dispose waste properly

MEANING OF WEATHER SYMBOLS

Weather symbols are simple signs or pictures used to show different weather conditions on weather charts, maps, and forecasts.

Common Weather Symbols and Their Meanings

☀️ Sunny – Bright sunshine, no rain

☁️ Cloudy – Sky covered with clouds

🌧️ Rainy – Rain is falling

🌬️ Windy – Strong wind blowing

⛈️ Stormy – Heavy rain with thunder and lightning

🌫️ Foggy – Thick mist making it hard to see

WEATHER RECORDS

Weather records are written information about daily weather conditions of a place. They are usually kept by meteorologists at a weather station.

Examples of Weather Records

1. Temperature record – how hot or cold the day is

2. Rainfall record – amount of rain that falls

3. Wind record – speed and direction of wind

4. Sunshine record – number of hours of sunshine

Importance of Weather Records

1. It helps farmers plan planting and harvesting.

2. It helps predict weather conditions.

3. It helps in air and sea transportation.

4. It helps people prepare for storms and floods.

MEANING OF GLOBAL WARMING

Global warming is the gradual increase in the temperature of the Earth caused mainly by too much heat being trapped in the atmosphere. This happens when gases from human activities prevent heat from escaping into space.

Causes of Global Warming (Brief)

1. Burning of fossil fuels (petrol, diesel, coal)

2. Smoke from factories and vehicles

3. Cutting down of trees (deforestation)

4. Bush burning

Effects of Global Warming

1. Increase in temperature – The weather becomes hotter than normal.

2. Melting of ice – Ice at the North and South Poles melts.

3. Rising sea level – Coastal areas may be flooded.

4. Irregular rainfall – Too much or too little rain.

5. Drought – Long periods without rain.

6. Flooding – Heavy rainfall causing overflow of water.

7. Poor crop production – Crops do not grow well.

8. Spread of diseases – Heat helps diseases to spread faster.