at 2 degrees global temp rise - agriculture yields significantly less bountiful - less food for more people- hurricanes and floods, extreme weather would dramatically increase- 4x as many wildfires in california . 4 degrees all major ice sheets in the planet would begin permanent irreversible melt which means we would lose all ice no matter what we did that ice together would add at leaset 200 feet of sea levle rise to the planet - inundate every single beach youve ever been to. the entire coastline of the world on which 2/3 of all major cities exist would be unrecognizable. 4 degrees means world gdp 20-30 percent smaller than it would be without climate change- 30 percent is an impact twice as deep as the great depression in the 1930s and it would be forever. roughly 600 trillion dollars in global climate damages which is double the amount of money than currently exists in the world- agricultureal yields would be half as productive. mosquitos carrying dengue and malaria would reach around the world up to the arctic circle. currently with emissions remaining at business as usual we are set to hit 4 degrees global temperature increase by 2100- the population will be 11 billion- notes taken from years of living dangerously project with david wallace wells
Today, we use 100 million barrels of oil every single day. There are no politics to change that. There are no rules to keep that oil in the ground. So we can't save the world by playing by the rules, because the rules have to be changed.
Everything needs to change -- and it has to start today. Greta Thunberg
In the absence of policies, global warming is expected to reach 4.1°C – 4.8°C above pre-industrial by the end of the century. The emissions that drive this warming are often called Baseline scenarios (‘Baselines’ in the above figure) and are taken from the IPCC AR5 Working Group III. Current policies presently in place around the world are projected to reduce baseline emissions and result in about 3.0°C1 warming above pre-industrial levels. The unconditional pledges and targets that governments have made, including NDCs2 as of December 2019, would limit warming to about 2.8°C3 above pre-industrial levels, or in probabilistic terms, likely (66% or greater chance) limit warming below 3.0°C. Warming estimates have fallen by 0.1-0.2°C compared to the CAT’s September 2019 update. However, the reason is largely methodological changes and data updates rather than any major scaling-up of climate action.
by 2100 with 4 degrees Celsius highest temps in 30 million years sea leave rise 3-6 ft. drought over 40% of inhabited land. hundred of millions of refugees. half of biodiversity gone. prof Kevin Anderson - a 4 degrees future is incompatible with an organized global community.
it took 200 k years to get to 1 billion humans - 200 years to reach 7 billion. human population has doubled since 1950.
1.6 billion in 1900 to over 6 billion in 2000.
11 billion expected by 2100
Electricity usage by data centers is enormous and expanding, threatening to top 10 percent of global electricity consumption within the next decade and to produce roughly five times the CO2 emissions of all current global air travel.
the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
An example is the body regulating its internal temperature by shivering or sweating.
Body Temperature. Another one of the most common examples of homeostasis in humans is the regulation of body temperature. ...
Glucose Concentration. ...
Calcium Levels. ...