The Climate Crises That Threatens Homo Sapiens: What Is It Possible To Do
Introduction. Climate change. Climate crises effects for Homo Sapiens. Rise in water level. Earth temperature change. Climate movement. History. Mobilization for Copenhagen Activities. Fossil Fuel Divestment. Climate Mobilization. Youth Climate Strikes. Global Climate Strike. Greta Thunberg. Thunberg’s message. What can be done. Paris Agreement. What can everyone do. Adjust your diet. De-carbonize your travel. Consume less, and wisely. Cut home energy use. Clean up investments. Talk about it. Be kind to yourself. Use your power. References.
Climate – is the long-term average of weather, typical average over a period of 30 years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, which includes the ocean and ice on Earth. The climate of a location is affected by its latitude, terrain, and altitude, as well as nearby water bodies and their currents.
Climate change is the variation in global or regional climates over time. It reflects changes in the variability or average state of the atmosphere over time scales ranging from decades to millions of years. These changes can be caused by processes internal to the Earth, external forces (e.g. variations in sunlight intensity) or, more recently, human activities.
2015 – Warmest Global Year on Record (since 1880) – Colors
Climate change increases the risk of conflict. It degrades land and leads to competition over precious natural resources. Over time, conflict can displace entire communities and lead to life-threatening hunger. But we can prevent it, if we proactively focus on these environmental risks and bring communities together to find solutions.
Since at least the start of the 20th century, the average global sea level has been rising. Between 1900 and 2016, the sea level rose by 16–21 cm. More precise data gathered from satellite radar measurements reveal an accelerating rise of 7.5 cm from 1993 to 2017, which is a trend of roughly 30 cm per century.
Current and future sea level rise is set to have a number of impacts, particularly on coastal systems. Such impacts include increased coastal erosion, higher storm-surge flooding, inhibition of primary production processes, more extensive coastal inundation, changes in surface water quality and groundwater characteristics, increased loss of property and coastal habitats, increased flood risk and potential loss of life, loss of non-monetary cultural resources and values, impacts on agriculture and aquaculture through decline in soil and water quality, and loss of tourism, recreation, and transportation functions. Many of these impacts are detrimental. Owing to the great diversity of coastal environments; regional and local differences in projected relative sea level and climate changes; and differences in the resilience and adaptive capacity of ecosystems, sectors, and countries, the impacts will be highly variable in time and space. River deltas in Africa and Asia and small island states are particularly vulnerable to sea-level rise.
In October 2019 a study was published in the journal Nature Communications, saying that the number of people who will be impacted from sea level rise during 21 century is 3 times higher that was previously thought. By the year 2050, 150 million will be under the water line during high tide and 300 million will live in zones with floodings every year. By the year 2100, those numbers differ sharply depending on the emission scenario. In a low emission scenario, 140 million will be under water during high tide and 280 million will have flooding each year. In high emission scenario, the numbers arrive to 540 million and 640 million respectively. 70% of these people will live in 8 countries in Asia: China, Bangladesh, India, Indonesia, Thailand, Vietnam, Japan, Philippines.
