Zambia has been experiencing adverse impacts of climate change – including an increase in frequency and severity of seasonal droughts, occasional dry spells, increased temperatures in valleys, flash floods and changes in the growing season.
How do we know the climate is changing?
The physical and biological changes that confirm climate warming include the rate of retreat in glaciers around the world, the intensification of rainfall events, changes in the timing of the leafing out of plants and the arrival of spring migrant birds, and the shifting of the range of some species.
What is the evidence for long term climate change?
Scientists have predicted that long-term effects of climate change will include a decrease in sea ice and an increase in permafrost thawing, an increase in heat waves and heavy precipitation, and decreased water resources in semi-arid regions.
What are some sources of evidence for past climate change?
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks.
What caused climate change?
The evidence is clear: the main cause of climate change is burning fossil fuels such as oil, gas, and coal. When burnt, fossil fuels release carbon dioxide into the air, causing the planet to heat up.
What are some examples of climate change?
These include warming temperatures and changes in precipitation, as well as the effects of Earth’s warming, such as:
- Rising sea levels.
- Shrinking mountain glaciers.
- Ice melting at a faster rate than usual in Greenland, Antarctica and the Arctic.
- Changes in flower and plant blooming times.
What is the evidence for climate change geography?
An introduction to the use of tree rings, ice cores and glacial activity as evidence of climate change. Two main pieces of evidence for climate change are discussed; the effects of temperature on tree ring widths over the short term and ice cores as evidence of longer term fluctuations.
How do tree rings show evidence of climate change?
The color and width of tree rings can provide snapshots of past climate conditions. … For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry. If the tree has experienced stressful conditions, such as a drought, the tree might hardly grow at all in those years.
How do tree rings provide evidence of climate change?
These rings can tell us how old the tree is, and what the weather was like during each year of the tree’s life. … Because trees are sensitive to local climate conditions, such as rain and temperature, they give scientists some information about that area’s local climate in the past.
What are the 5 causes of climate change?
The National found out the five main culprits for this increase in greenhouse gases.
- Fossil fuels. Expand Autoplay. …
- Deforestation. …
- Increasing livestock farming. …
- Fertilisers containing nitrogen. …
- Fluorinated gases.
What are three new facts you learned about climate change?
10 facts about climate change
- Fact 1: Most of the increase in global temperatures since 1950 has been caused by human activity. …
- Fact 2: The average temperature of the Earth is determined by the greenhouse effect. …
- Fact 3: Global temperatures have increased by about 1° Celsius in the past century.
What are 10 causes of climate change?
Top 10 Causes Of Global Warming
- Oil and Gas. Oil and Gas is used all the time in almost every industry.
- Deforestation. Deforestation is the clearance of woodland and forest, this is either done for the wood or to create space for farms or ranches. …
- Waste. …
- Power Plants. …
- Oil Drilling. …
- Transport and Vehicles. …
- Consumerism. …
- Farming. …
What are the 4 main effects of climate change?
What are the effects of climate change and global warming?
- rising maximum temperatures.
- rising minimum temperatures.
- rising sea levels.
- higher ocean temperatures.
- an increase in heavy precipitation (heavy rain and hail)
- shrinking glaciers.
- thawing permafrost.