Climate change consequences

by | 7 October 2021 | Environment, Sherwood

“You cannot be called an alarmist if there really is something to be alarmed about.”
Large-scale changes to our atmosphere and environment that would normally happen over thousands of years are now happening in decades. Our global atmosphere is heating up and becoming warmer and more turbulent from fossil fuel burning and its greenhouse gas effects. Our personal, business, and national lives will soon become more turbulent in many new ways.
The 20 worst global consequences can bring about global warming, mass human, animal, and biological extinction within our lifetimes. Most of the consequences are already occurring around the world at various levels, as evidenced in the recent floods in New York and wildfires in California and Greece. A few will be occurring soon as global warming continues to increase our average global temperature
The list includes the spread of diseases, epidemics, and pandemics, increased heat, and droughts, which will lead to desertification through soil and vegetation loss. We will experience less food and water. We are already experiencing fires and wildfires, loss of biodiversity, destruction of ecosystems and toxic air pollution.
As the Jetstream becomes disrupted, it will act to significantly change long-established weather patterns. Shrinking sea ice and ice shelves, shrinking glaciers and snowpack together with melting tundra and permafrost are a result of the Arctic warming twice as fast as the rest of the world. The shifting weights of melting glaciers and melting ice sheets will lead to increased volcanic activity, and more tsunamis potentially resulting in mass climate migration.
We are already seeing the consequences of flooding, rising sea levels and ocean acidification and marine death as well as loss of breathable air from the destruction of phytoplankton.
As a result of loss or degradation of animal habitats, animals will migrate to new areas inhabited by humans resulting in animal attacks. We will start to feel the impact of the financial costs, losses, and economic consequences of the escalating global warming emergency.
For more details of these consequences see
The evidence of these consequences will also provide critical early warning signals that every prudent person should be monitoring.
Month-by-month and year-by-year, the consequences of escalating global warming will increasingly:
• cut into personal, business, and national budgets,
• change normal day-to-day personal and work life in increasingly negative ways,
• significantly affect any plans being made for the future,
• potentially cause migration to reduce suffering and survive longer,
• threaten the extinction of most of humanity by mid-century as well as trigger economic, political, and social chaos within our lifetime
The accelerating global warming emergency is not taking place in a vacuum. There are many other global challenges in play. In previous articles we have looked at the global challenges which will accelerate many of the worst consequences of global warming. Unless we see urgent and immediate action to drastically reduce emissions, some experts believe we could face the collapse of our global civilization within a matter of three to five decades.
Global warming started out as an environmental problem. It has now evolved into the world’s largest, continually escalating economic and security problem.
Our situation has many similarities to the Paleocene–Eocene Thermal Maximum extinction event – a massive methane release that occurred 55 million years ago and killed roughly 70% of all life on the planet. We could face a similar event once we reach a 5° celsius temperature increase.
Once temperatures surpass a 6° celsius increase, the ocean phytoplankton responsible for producing 50% to 80% of the atmosphere’s breathable air will halt oxygen production and we will run out of breathable air.
Knowing the global warming consequences and how they are unfolding will serve as critical warning signs about our future quality of life.
For more information about Sherwood Forest Friends of the Earth, we’re on Facebook at Sherwood Forest FoE, or email