A
B
C
D
E
100

Long-term alterations in Earth’s climate system leading to new weather patterns.

climate change

100

The trace gas at 0.04% that plays a crucial role in regulating climate.

carbon dioxide

100

Cutting down forests, reducing CO₂ absorption.

deforestation

100

The rise in ocean water levels due to warming.

rising sea levels

100

A Spanish term meaning “the girl child,” linked to unusually cool Pacific waters.

La Niña

200

The sustained increase in the planet’s average surface temperature.

global warming

200

The process where gases absorb and trap heat, keeping Earth warm.

greenhouse effect

200

Burning oil, gas, and coal.

fossil fuels

200

The loss of species forced to move to cooler habitats.

wildlife endangerment

200

The large-scale climatic phenomenon involving fluctuating ocean temperatures and atmosphere.

ENSO (El Niño Southern Oscillation)

300

The primary driver of climate change, accounting for about 65% of global emissions.

carbon dioxide (CO₂)

300

A greenhouse gas produced by livestock and agriculture.

methane (CH₄)

300

Emissions from factories and vehicles.

industry and transportation

300

Severe weather events like storms, floods, and droughts.

extreme weather

300

One of the strongest ENSO events of the 20th century, causing drought in the Philippines.

1997–1998 El Niño

400

The gas that makes up 78% of Earth’s atmosphere.

nitrogen

400

A greenhouse gas produced by fertilizers and soil management.

nitrous oxide (N₂O)

400

Farming activities that emit methane and nitrous oxide.

agriculture

400

Spread of diseases due to warmer temperatures and ecosystem disruption.

spreading diseases

400

Higher evaporation rates leading to increased precipitation and flooding.

rising temperatures

500

The gas that makes up 21% of Earth’s atmosphere.

oxygen

500

Industrial greenhouse gases like HFCs, SF₆, and NF₃.

human-made greenhouse gases

500

The melting of glaciers, ice caps, and sea ice.

ice melting

500

A Spanish term meaning “the boy child,” linked to unusually warm Pacific waters.

What is El Niño

500

Heavy rainfall washing pathogens into drinking water sources.

water contamination (spreading diseases)

M
e
n
u