Recommended
More Related Content
Similar to CLIMATE & CLIMATE CHANGE.pptx_10000237263927292211
Similar to CLIMATE & CLIMATE CHANGE.pptx_10000237263927292211 (20)
Recently uploaded
Recently uploaded (20)
CLIMATE & CLIMATE CHANGE.pptx_10000237263927292211
- 17. What Causes Climate Change? Climate change can be caused gradually by natural processes or suddenly by large events, such as a massive meteorite strike or volcanic activity. However, the rapid climate change we are experiencing now is due to three main human activities: Burning fossil fuels for heating and cooking, generating electricity and powering vehicles releases carbon dioxide into the atmosphere. Deforestation (destruction of forests) releases carbon dioxide and reduces the number of trees able to capture carbon dioxide from the atmosphere. Reduction of biodiversity creates an unstable ecosystem. Nature loss leads to ecosystems that are less able to capture carbon from the atmosphere and less resilient to rising temperatures. Untitled by © Sam Hobson / WWF-UK licensed under CC BY Deforestation for future agriculture plantation-Tahuamanu Province, heading to Centro Poblado de Alerta - Madre de Dios Region, Peru by © Nicolas Villaume / WWF-US licensed under CC BY
- 18. Human activity • Over the last 100 years, since the industrial revolution, greenhouse gases have rapidly increased in the atmosphere • This is due to human activities which release greenhouse gases • Electricity from coal or diesel generators and industry or pollution from factories contribute the most
- 19. Human activity • Over the last 100 years, since the industrial revolution, greenhouse gases have rapidly increased in the atmosphere • This is due to human activities which release greenhouse gases • Electricity from coal or diesel generators and industry or pollution from factories contribute the most
- 20. Changing seasons CHANGING SEASONS HAZARDS oRainy season may be delayed in some regions •Spring might come earlier in other regions •Seasons may become more intense IMPACTS Crops may die Farmers may need to change crops Incomes are lost Transportation is interrupted Financial losses Water availability
- 21. Drier & longer droughts DROUGHT HAZARDS Water shortage Wind erosion Desertification Increased risk of wild fires IMPACTS Less or no crops Animals may die Less water supply Incomes are lost Financial losses People become sick Migration
- 22. Melting glaciers & polar ice MELTING GLACIERS & POLAR ICE HAZARDS Sea level rise Less ice to reflect sunlight, leads to increased warming IMPACTS Flooding in low lying coastal areas Coastal areas & cities threatened Loss of wildlife / biodiversity
- 23. Extreme winds & stronger storms EXTREME WINDS & STORMS HAZARDS Severe wind Storm surge Flooding IMPACTS People die Animals die Loss of income Financial losses
- 24. Sustainable Development Goals In the same year that the Paris Agreement was signed, 17 Sustainable Development Goals (SDGs) were adopted by all United Nations Member States. The 17 goals set out all of the things that need to be achieved to protect the planet and ensure that all people enjoy peace and prosperity.
- 25. Sustainable Development Goals In the same year that the Paris Agreement was signed, 17 Sustainable Development Goals (SDGs) were adopted by all United Nations Member States. The 17 goals set out all of the things that need to be achieved to protect the planet and ensure that all people enjoy peace and prosperity.
Editor's Notes
- Today, climate change is leading to shifts in what seasons used to look like. Spring might come earlier in some parts of the world. Rainy seasons are delayed in other parts. Seasons are getting more extreme too. This is predicted to worsen in the future. Changing seasons affect farmers. For example if the rainy season is delayed, crops already planted might fail. Farmers might need to change crops to those that grow better to keep up with the new climate conditions. Changing seasons also affect fresh water availability. In the Northern Hemisphere, an earlier spring causes earlier peaks in snow melt and river flows. This means less water is available in the summer and autumn when demand is often highest (Earth observatory (2017)).
- Droughts have been drier and lasting longer in recent years thanks in part to climate change. Higher temperatures increasing evaporation combined with less rain causes can cause more drought. Droughts can be devastating to the environment. But droughts also have serious consequences for people’s livelihoods. They really affect farmers, but also the water supply and people's health. Over the longer term some crops and animals will not be able to survive the drier conditions. Farm workers and their families may have to migrate.
- Water can soak up a lot of heat. When the oceans get warmer, sea ice begins to melt in the Arctic and around Greenland. NASA's satellites show us that every summer some Arctic ice melts and shrinks, getting smallest by September. Then, when winter comes, the ice grows again. But, since 1979, the September ice has been getting smaller and smaller and thinner and thinner in the Arctic this now decreases 13% every 10 years! (NASA, 2017). Glaciers are another form of melting, shrinking ice. Glaciers are frozen rivers. They flow like rivers, only much slower. Lately, they have been speeding up (NASA kids, 2017). As more sea ice and glaciers melt, the global sea level rises.
- Higher temperatures lead to warmer and wetter environments. In the future, climate change will likely lead to stronger tropical storms, cyclones and hurricanes. However, it may lead to a decrease in the number of storms (NOAA, 2017). In general, rainfall will become more intense, which will lead to increased impact from storms.
- Some of the goals are to do with the state of our planet. However, one of the most important things about the SDGs is the fact that they are all connected. All the goals need to be realised together for us to achieve a future in which every person born anywhere in the world has a healthy happy life.