Stories tagged with "deforestation"

A distant mirror: Ireland's great famine




In the 18th century, Ireland lost much of its forested land. This graph of wooded land for sale has been generated from data reported by Eileen Mc Cracken in "The Irish Woods since Tudor Times" (1971). The data are fitted with a derivative logistic, as for a "Hubbert" curve. The good fit indicates the over-exploitation of a slowly renewable resource.

Deforestation was not the direct cause of the Great Irish famine of mid 19th century, but it was the start of a chain of events that led to it. In this article, I show the condition of "overshoot" that Ireland was in at the time of the famine has much in common with the "overshoot" condition our world is in today.

Home Heating in the USA: A Comparison of Forests with Fossil Fuels

As the shortest day of the year is just ahead, and colder temperatures abound, (at least in the North), I thought I'd edit and repost an analysis on home heating I ran last summer. (That post was followed by quite a good discussion)

A short fifty years ago, people heated their homes in winter with coal. A hundred years ago and before, people living in cold climates largely stayed warm in winter with firewood. Today, in a country (and planet) with vastly more people, we heat homes in northern climates largely with high quality fossil fuels, specifically natural gas, heating oil, and propane. Trees, a less energy-dense form of stored sunlight than oil and gas, have recovered a good part of their former % of landcover in the US, despite being still used for paper, wood, furniture, pulp and some heat. Below is an analysis of how the US residential sector heats its homes, how large are our forests and how much they grow and how much wood we could use for heat, after fossil fuels decline.





US direct fossil fuel use for heating Click to enlarge.

The Round-Up: April 13th 2007

Canada must nationalize its oil and gas industry: Quebec accounting professor

Lauzon has been calling for the nationalization of Canada's oil and gas industry over the last several years.

He told a news conference the analysis has shown that major oil companies continue to eliminate their competition by either buying or merging them and most of the profits go to the shareholders rather than investing and building refineries.

"Currently Canada, self-sufficient in oil and gas as the third-largest producer of natural gas and the sixth-largest for oil, has prices imposed on it due to events that happen in Iran, Iraq or Saudi Arabia," he said.

"Among oil-producing countries, Canada is going the wrong way. It's the only western country to privatize this essential resource, largely to foreign interests," Lauzon said.

Petro-Canada (TSX:PCA) of Calgary was created as a government-owned company during the Trudeau era in response to an oil shortage during the mid-1970s due to a crackdown on supplies by the OPEC oil cartel.

However, subsequent Liberal and Conservative governments have since divested their ownership in Petro-Canada, which remains a major integrated oil company with exploration, production, refining, distribution and retail operations.