1 - Menschliche Aktivitäten
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This is where it all begins... This is also where 5th IPCC report begins. In the foreword of the report, it is stated that "the IPCC is now 95 percent certain that human beings are the main cause of current global warming". This card can be considered: either as the cause of all the economic sector cards (Industry, Building Usage, Transportation, Agriculture), or as a heading for these cards (in which case they can be grouped together and circled).
4Auswirkungen
accounts for 40% of greenhouse gas (GHG) emissions
accounts for 20% of GHG emissions
accounts for 15% of GHG emissions
accounts for 25% of GHGs if we include induced deforestation.
2Andere möglichen Ursachen
It's the final loop of the Club of Rome. All this will eventually regulate itself, but not necessarily peacefully. The players often make this link and sometimes propose to roll up the Fresk to connect the beginning and ending edges. Moreover, it is noteworthy that humankind appears in the first and last cards, but not in the middle of the Fresk.
What comes first? Do human activities cause the use of fossil fuels or do fossil fuels ensable human activities? Don't waste time on this and group the two cards together if necessary. Plenty of activities, happily, do not require burning fossil fuels, like windmills and watermills grinding grains for flour.
3Andere möglichen Auswirkungen
Humans occupy almost all available space on Earth, leaving no room for animals and plants. This entails the disappearance of natural habitats and it is the main cause of biodiversity loss today, well ahead of climate change.
With this link, we highlight all the degradations that humans are inflicting on marine life such as plastic pollution and overfishing. It's irrelevant to climate change, but it's interesting to make the connection anyway.
Deforestation can be considered either as a human activity, or as a consequence of agriculture, or both.