threats to the environment

threats to the environment

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Index

ocean acidification

ConCEPT

global warming

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examples

data

timeline

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biodivesity

Concept

threats to our environment

environmental issues are a matter of concern these days while the climate crises has many factors that play a role in the exacerbation of the environment ,there are some that warrant more attention than others

Concept

HOW DO WE DEFINE environmental threat?

Environmental means concerned with the protection of the natural world of land, sea, air, plants, and animals. [...]

A threat to a person or thing is a danger that something unpleasant might happen to them. A threat is also the cause of this danger.

global waming

global warming from fossil fuels

• def: GW is the increase in the average temprature of the earth's atmosphere and it is caused by the rise in CO2 levels in the atmosphere so what's the link between fossil fuels and GW?
• when fossil fuels are burned ,they release large amount of CO2,green houses gas in the air.Green house gases trap hit in our atmosphere,causing GW.
• the last time CO2 mevels on our planet were as high as today was more than 4 million ago
• example Ausrtalia and the US experiencing bushfire seasons and Antractica that saw a temp rise above 20 degree for the first time

examples

• bushfire season in Australia

• heat wave in Antractica

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biodiversity

• the past 50 years have seen a rapid growth of human consuption population,global trade and urbanisation, resulting in humanity using more of the resources that it can replensh naturally . a recent WWF report found that the population sizes of mammals,fish,birdshave experienced a decline of an averagevof 68% between 1970 and 2016.
• the scientists say that without human destruction of nature,this rate of loss would have taken thousands of years.

"If you really think the environment is less important than the economy try holding your breath while you count your money"

GUY MCPHERSON

ocean acidification

WHAT does that mean?

Ocean acidification refers to a reduction in the pH of the ocean over an extended period of time, caused primarily by uptake of carbon dioxide (CO2) from the atmosphere.

our ocean absorb about 30% of CO2 that is released in the atmosphere . in addition ocean asidification has devastating impacts on marine ecosysteme and species,its food,and provoke irreversible changes in habitat quality.one of the biggest problem of ocean acidification is coral reef loss

Photos

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Data

11%

of global greenhouse gas emissions caused by humans are the product of deforestation. This is comparable to the emissions from all the cars and trucks on the planet.

Timeline

The UN Conference on the Human Environment

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1972

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The 1979 World Climate Conference

1979

United Nations Convention on Climate Change

1992

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Kyoto Protocol

1997

Timeline

Kyoto Protocol goes into effect

2005

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The Paris Agreement goes into effect

2016

El Parlamento Europeo declara oficialmente la emergencia climática

2019

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The European Climate Law

2020

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