What are greenhouse gases? Chemical compounds in the atmosphere Eg: carbon dioxide methane cfcs nitrous oxide ozone These gases act as greenhouse gases.

What do they do? These gases allow sunlight to enter the atmosphere freely.greenhouse gases absorb the radiation and trap the heat in the atmosphere

What is global warming? Increasing the earth’s temperature, especially a sustained increase to cause climate change.

What is global change? Environmental change that occur around the earth in response to a combination of factors. eg: sea level rising

What is climate change? Regional change in temperature and weather patterns. Has a link with human activity specially the burning of fossil fuels.

What causes climate change? Gases such as carbon dioxide and methane(known as two of the greenhouse gases) trap some of the heat from radiation into the atmosphere. The concentration of the gases increases as a result of human activity and therefore it causes the global temperature to increase and climates to change.

What is human activity? Burning of coal, oil, natural gases as well as cutting down trees(deforestation) are known as human activities.these alter(change) the composition of the atmosphere and add to climate change.

What has human activity caused? Increased the atmospheric concentration of a number of greenhouse gases. Such as: carbon dioxide methane nitrous oxide chlorofluorocarbons ozone

Increasing the levels of greenhouse gases in the atmosphere human activities are strengthening earth’s natural greenhouse effect.

Burning of coal,oil,natural gases!! Every time we drive a car, use electricity from coal-fired power plants, or heat our homes with oil or natural gas we release carbon dioxide and other heat trapping gases .

Deforestation!!! Second most important source of greenhouse gases

Various agricultural and industial activities: Are changing the earth’s composition of the atmosphere and adding to climate change.

Carbon dioxide Methane Nitrous oxide Chluroflucarbons Ozone in lower parts of atmosphere

Scientists!!! They believe that combustion of fossil fuels and other human activities are minors Plant respiration and decomposition of organic matter release TEN times more carbon dioxide.

The amount of gases grows, more heat is trapped by the atmosphere and less escapes back into space.this can cause changed weather patterns and may cause severe storms.

Coastal erosions!!! Coastal erosion occurs mostly in the Waikato region. Coastal development has occurred too close to the sea.

Global warming effects may cause rise in sea level in our coastal marine area.

When these natural processes interfere with our coastlines they get exposed to storms and flooding.

Two types of coastal erosion: Short-term erosion Long-term erosion

Coastal pressures!!! Damage or loss of sand dunes Damage to sand dune vegetation Removing coastal plants and trees Global warming( sea level rise) Removal of sand

Actions!!! Managing coastal hazards carefully Putting sign boards Building sea walls Advertisements

Conclusion!!! I personally think that beaches are a natural resource for us for enjoyment and for a long term sustainability of the Waikato coastline I think people should be protecting them from coastal hazards rather then exposing it to coastal hazards.