Increase In Households Threatens Biodiversity

A new study show that more households with fewer occupants has a strong impact on the environment.

1 minute read

January 15, 2003, 9:00 AM PST

By Abhijeet Chavan @http://twitter.com/legalaidtech


"Human population growth is threatening animals and plants, but so too is the rising number of households, even in areas where the population is steady or shrinking. Throughout the world, the number of generations living under one roof has declined, and divorce is splitting families into multiple homes. More households containing fewer people are more damaging to the environment than simple population growth...The abundance of dwellings with just one, two or three occupants can cause a sharp rise in the use of energy, land, construction materials and water."

Thanks to Michael Dudley

Monday, January 13, 2003 in Nature

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Geese flock to a frozen pond in Aurora, Colorado. There are houses in the background.

Colorado’s Largest Data Center Could Rise Next to Homes — Without a Public Hearing

The proposed campus would consume 11 times the power of Denver International Airport; as it has across the country, opposition mounts.

September 17, 2026 - Capital & Main

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18 - Inside Climate News

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18 - Mass Transit

Federal Reserve Chair Kevin Warsh delivers remarks at his swearing-in ceremony in the East Room of the White House.

Raised interest rates may kill financially vulnerable construction projects

The chief economist at ConstructConnect warns that if construction project owners are negatively impacted by the raised rates, it could result in delayed payments to contractors.

September 18 - Construction Dive