Many countries, including Canada, are required to report a national inventory of human-generated sources and sinks of greenhouse gases (GHG) every…+
Tag Archives: climate change
CO2 equivalents
Charts and tables in this Emissions section of our website convert all greenhouse gas (GHG) emissions into CO2 equivalents so…+
How can we predict climate?
How can we talk about climate change over the next 100 years when we can’t be sure of tomorrow’s weather?…+
Are humans the cause?
Q1: How do scientists know human activities are causing the recent warming? Answer: Prior to the Industrial Revolution and subsequent…+
What about lag time?
In the past, carbon dioxide levels rose AFTER temperatures rose. Does this indicate that rising carbon dioxide levels today are an…+
What about water vapour?
Water vapour is the most abundant greenhouse gas in the atmosphere, yet other greenhouse gases (such as carbon dioxide and…+
General Overview
On this page you will find answers to some more questions about the changes that are happening to the climate:…+
The Sun’s effect on climate
How do we know the current warming trend is not caused by the sun? Here is a 3-minute video explanation…+
What was climate like in the past?
On this page, we investigate the following examples of ways of looking into past climates by using proxies: Ice cores…+
Feedback processes
Feedback processes either enhance (positive feedback) or weaken (negative feedback) the effect of climate change triggers. Feedback processes can be…+
