The document discusses several climatic phenomena occurring on a global level, including the greenhouse effect which traps heat in the atmosphere and leads to natural warming of the Earth, global warming which can be caused by both human and natural factors, climate change characterized by changes in temperature, precipitation and wind caused by human activities, El Niño which is a natural warming of Pacific Ocean temperatures every few years, and La Niña which is the opposite phenomenon triggered by Pacific Ocean cooling.

1. Climatic Phenomena
Occurring on a Global Level

2. Greenhouse Effect
The greenhouse effect is the natural warming process
of the Earth that results when gases in the atmosphere
trap heat from the earth that would otherwise escape
into space.
The different greenhouse gases are carbon dioxide,
methane, nitrous oxide

3. Global warming
Global warming is caused by several factors such
as man-made, anthropogenic, or natural. One
example of natural causes is the released of
methane gas from arctic tundra and wetlands.

4. Climate Change
Climate change is the global phenomenon of
climate transformation characterized by the
changes in the usual climate of the planet
(regarding temperature, precipitation, and wind)
that are especially caused by human activities

5. El Niño
is a naturally occurring phenomenon characterized by
the abnormal warming of sea surface temperature in the
central and eastern equatorial Pacific Ocean. On
average, it occurs every two to seven years and can last
up to 18 months.

6. La Niña
La Niña is the opposite climatic disturbance to El Niño. This
natural phenomenon may but does not always follow El Niño
events. It may last for nine to twelve months but in some
cases, it lasts for two years. This event is triggered by the
cooling of the eastern part of the Pacific Ocean. Trade winds
that move from east to west are strengthened.