Question

Describe four expected impacts of global warming.

Answer 1

Global warming is expected to have impacts such as rising sea levels, extreme weather events, shifts in ecosystems, and changes in food production.

Step-by-step explanation:

Global warming is expected to have several impacts on the planet. Four of these impacts include:

1. Rising sea levels: As glaciers and polar ice sheets melt, the volume of water in the oceans increases, leading to higher sea levels. This can result in coastal flooding and the loss of coastal ecosystems and human communities.
2. Extreme weather events: Global warming is causing greater frequency and severity of extreme weather events such as hurricanes, droughts, and heatwaves. These events can lead to property damage, loss of life, and displacement of people.
3. Shifts in ecosystems: Terrestrial plant and animal ranges are expected to shift towards the poles due to changes in temperature and climate. This can result in the disruption of natural habitats and loss of biodiversity.
4. Food production changes: Changes in temperature and precipitation patterns can affect agricultural production. Some regions may experience reduced crop yields, leading to food shortages and increased food prices.

Answer 2

Many impacts can be brought by global warming, here I would introduce two impact each on the aspect on ecosystem and agriculture.

On ecosystem:

1. Shift in distribution of plants:

The changes in climate brought by global warming will alter the natural distribution limits for vegetation. For example, forests are moving north into the ;and that was once Arctic tundra, while the growing season increased in northern high latitudes.

2. Extinction or endangerment of species

Species may not be able to cope with climate change unlike human, hence intolerance of the increasing temperature may led to the extinction of spices. For example, coral reef cannot survive under temperature over 30 degree Celsius hence facing the danger of extinction.

On agriculture:

3.Farm production lowered

A warmer climate would lead to a loss of soil moisture hence increasing the erosion rate, and the dry soil will lower the land productivity as crops cannot grow on these barren land, especially water thirsty crops such as rice.

4.Farm production destroyed

Pests may become more active given the shorter and warmer winter, while floods may be present more often given the rapidly rising sea level and the instability of the climate.

Hope it helps!