Climate Change Reference Material

Climate Change Affirmations and Denials

The natural phenomena that could cause climate change.

Trump tweets climate change is a hoax.

Scientists think 100% of recent global warming is caused by human activity.

Scientists do not think global warming is a myth but have examined the issue seriously. – Scientific American

Increasing Greenhouse Gases and Carbon Dioxide

Best graph of historical carbon dioxide

What are the greenhouse gas changes since the Industrial Revolution? American Chemical Society.

Data for the past 2000 years show that the atmospheric concentrations of CO2, CH4, and N2O – three important long-lived greenhouse gases – have increased substantially since about 1750. Rates of increase in levels of these gases are dramatic. CO2, for instance, never increased more than 30 ppm during any previous 1,000-year period in this record but has already risen by 30 ppm in the past two decades.

These increases in greenhouse gas concentrations and their marked rate of change are largely attributable to human activities since the Industrial Revolution (1800).



Climate Change, How Do We Know – NASA


The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.

The Relentless Rise of Carbon Dioxide – NASA

Climate Milestone: Earth’s CO2 Level Passes 400 ppm – National Geographic 5/12/13

Greenhouse gas highest since the Pliocene, when sea levels were higher and the Earth was warmer.

An instrument near the summit of Mauna Loa in Hawaii has recorded a long-awaited climate milestone: the amount of carbon dioxide in the atmosphere there has exceeded 400 parts per million (ppm) for the first time in 55 years of measurement—and probably more than 3 million years of Earth history.

Lessons for long-term Earth Observations – Scripps Oceanography


A Blanket Around the Earth – NASA

Global Climate Change Statistics and Facts – Statista

Rising Global Temperature

Climate Change Global Temperature –

Global Temperature Facts from NASA.

Global Temperature and Climate Change from NOAA.

Rising Sea Level

Best graph of global historical rising sea level.

New study finds sea level rise accelerating from NASA.

Global Sea Level Facts from NASA.

Penn State Earth in The Future Course

On the graph above, the y-axis plots the length of the glaciers relative to their length in 1950 — so this is a kind of length anomaly. A positive number means that on average, glaciers were longer than they were in 1950; negative numbers mean they were shorter. Here, we can see that beginning around 1850, glaciers around the world begin to shrink, and this trend continues to the present. The average glacier has retreated almost 2 kilometers in this time.

It is possible to estimate the magnitude and history of temperature change needed to produce this history of glacial retreat, and Oerlemans (2005) did this using a simple model; the results are shown below.

Rising oceans threaten to submerge 128 military bases: report – Navy Times

U.N. Ocean Conference Fact Sheet

National Security Implications of Climate Change for U.S. Naval Forces

Ocean Acidification (jeopardizing world’s fisheries)

Oceans have become 25% more acidic from National Geographic.

Ocean Acidification graph from Smithsonian.

Deserts Expanding and Tropics Enlarging

The Sahara has expanded 10% from Science Daily.

The tropics are enlarging from Yale.

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