HOW MUCH IS THE EARTH HEATING UP - As of early 2017, the Earth had warmed by roughly 2 degrees Fahrenheit (more than 1 degree Celsius) since 1880, when records began at a global scale. The number may sound low, but as an average over the surface of an entire planet, it is actually high, which explains why much of the world’s land ice is starting to melt and the oceans are rising at an accelerating pace. If greenhouse gas emissions continue unchecked, scientists say, the global warming could ultimately exceed 8 degrees Fahrenheit, which would undermine the planet’s capacity to support a large human population.
Global warming is a long-term rise in the average temperature of the Earth's climate system, an aspect of climate change shown by temperature measurements and by multiple effects of the warming. The term commonly refers to the mainly human-caused observed warming since pre-industrial times and its projected continuation, though there were also much earlier periods of global warming.
In the modern context the terms global warming and climate change are commonly used interchangeably, but climate change includes both global warming and its effects, such as changes to precipitation and impacts that differ by region.
In 2013, the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report concluded, "It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century." The largest human influence has been the emission of greenhouse gases such as carbon dioxide, methane, and nitrous oxide.
In view of the dominant role of human activity in causing it, the phenomenon is sometimes called "anthropogenic global warming" or "anthropogenic climate change."
Climate model projections summarized in the report indicated that during the 21st century, the global surface temperature is likely to rise a further 0.3 to 1.7 °C (0.5 to 3.1 °F) to 2.6 to 4.8 °C (4.7 to 8.6 °F) depending on the rate of greenhouse gas emissions.
These findings have been recognized by the national science academies of the major industrialized nations and are not disputed by any scientific body of national or international standing.
In 2016, Earth’s average surface temperature hit a record level for the third consecutive year since records began in 1880.
The global average temperature was about 1.1 degree Celsius (1.98 Fahrenheit) higher than the pre-industrial era. This is when mankind’s mass burning of coal, and later oil and gas, started hiking levels of heat-trapping CO2 in the atmosphere.
The Melting Ice
Arctic summer sea ice shrank to 4.14 million square kilometers (1.6 million square miles) in 2016 — the second-lowest after 2012, when it reached 3.39 million km2.
The Arctic Ocean could be ice-free in summer as early as 2030 due to ocean warming.
On the other extreme of the world, Antarctica, sea ice last year hit its lowest extent ever recorded by satellites.
For the first time on record, in 2015, the amount of CO2 in the atmosphere averaged 400 parts per million (ppm).
The Rising Sea Level
The National Oceanic and Atmospheric Administration (NOAA) said in January 2017 the global average sea level could be between 0.3 and 2.5 meters (one foot to 8.2 feet) higher by 2100.
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THE BLONDE YEARS - Business success does not appear to go hand-in-glove with conservation needs, where there is no profit in doing the right thing, other than saving the planet. But you cannot bank saving the planet. This begs the question, do we want hard nosed business ethics entering the political arena with Presidents like Donald Trump. Want it or not the USA have got it because he used his climate change dollars to buy the presidency. Should that be allowed? We'd suggest a cap on allowable election expenses. We live in hope that the entrepreneur might develop a conscience while still in office.
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