According to a new report by the World Wildlife Fund, the planet’s populations of vertebrates have dropped an average of 60% since 1970.
[Read more…] about The Global Vertebrate Population Is Struggling
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Bad News For Beer
As extreme weather events become increasingly common, arctic ice disappears, and wildfires burn for weeks on end, many people wonder just what it will take to change some of the entrenched opinions about climate change.
Mammals Can’t Seem To Evolve Fast Enough
Our planet has been through five upheavals over the past 450 million years. During each one, the environment on earth changed so dramatically that most plant and animal species became extinct. After each of these mass extinction events, evolution slowly filled the gaps in the environment with new species.
The Earliest Overshoot Day Ever
Earth Overshoot Day marks the date when humankind’s demand for ecological resources and services in a given year exceeds what our planet can regenerate in that year. The deficit for the remainder of the year means we are liquidating stocks of ecological resources and accumulating waste, primarily carbon dioxide in the atmosphere.
Land And Diets
Most of us are likely familiar with the saying ‘you are what you eat.’ But what we eat – those food choices – can have a profound impact on the planet.
Geoengineering And Developing Countries
There are some mind-boggling schemes being discussed to mitigate the global warming caused by greenhouse gases. These include placing giant mirrors in orbit to reflect sunlight before it reaches Earth and launching millions of tons of sulfur into the stratosphere to simulate the effects of a major volcanic eruption.
Climate Change And Temperature Variations
It’s no surprise that not everyone on the planet is equally responsible for the effects of climate change. For instance, the Northern Hemisphere, which is home to 13 of the 15 largest countries by GDP, emits far more greenhouse gases than the Southern Hemisphere does. But the whole planet heats up as a result.
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Alien Waters Invade The Arctic
The Arctic is heating up faster than any other region of the planet. As a result, once-distinct boundaries between the frigid polar ocean and the warmer, neighboring Atlantic and Pacific Oceans are blurring, opening the way for the southern waters to enter the polar regions. The volume of Pacific Ocean water flowing into the Arctic Ocean through the Bering Strait has increased by 70% over the past decade. The Arctic Ocean’s cold layering system that blocks Atlantic inflows is breaking down.
Indonesian Deforestation Continues
Worldwide, deforestation and land disturbance are responsible for about a quarter of all greenhouse gas emissions. The largest contributor to this problem is Indonesia and getting control of its emissions is a crucial part of meeting global carbon reduction targets.
The High Cost Of The Cloud
More and more often we make use of “the cloud” – that mysterious place where we store, move, process and analyze data. We keep our photos there. We stream music and videos from there. We do our work there. Perhaps we have a mental image of all of this digital information floating above our heads in some ethereal way: like in a cloud.
Air Pollution Reducing Global Warming
Pollution particles emitted by diesel cars and trucks, coal-fired power plants, factories, primitive cook stoves, and the burning of forests are major contributors to the pervasive air pollution that plagues many cities and regions of the world. In India and China, such pollution leads to hundreds of thousands of deaths each year. And countries around the world are working hard to reduce pollution.
Fish In Small Lakes
There are millions of lakes on our planet. Many are quite large such as the Great Lakes in our country and Lake Victoria in Africa, but one-third of the world’s standing water is contained in lakes and ponds of 25 acres or less. Many of these lakes are found in remote, often mountainous areas with no inflow and outflow. Nevertheless, in most of these lakes there are fish.
Polar Bears Are Struggling To Find Food
Climate change continues to pose a major threat to polar bear survival. Polar bears, whose native range largely lies within the Arctic Circle, depend on sea ice for nearly all of their life cycle functions. And rising global temperatures are causing that sea ice to disappear.
Greening Halloween
According to the National Retail Federation, 179 million Americans are expected to spend $9.1 billion – or nearly $84 per person – on Halloween festivities this year, reaching a new record high. But it’s not just our wallets that take a beating. The planet also pays quite a price.
A Ton Of Plastic Per Person
A study by the American Association for the Advancement of Science has produced an estimate of the total amount of plastic manufactured worldwide since the 1950s. The researchers then measured that data against statistics on recycling, incineration and discard rates. The results are sobering.
Another Unconventional Fossil Fuel Source
It has only been about 10 years that fracking has been a big deal in the energy world. With it, a largely inaccessible source of fossil fuel became relatively easy pickings. And both the economic benefits and the attendant environmental problems have been grabbing headlines ever since.
[Read more…] about Another Unconventional Fossil Fuel Source
Measuring Earth’s Outgoing Energy
The earth’s energy imbalance is the difference between the amount of solar energy absorbed by the earth and the amount of energy the planet radiates back into space as heat. If the imbalance is positive, that is, if more energy is coming in than going out, then the earth will get warmer over time. If the imbalance is negative, then the planet will get cooler.
The Perils Of Air Conditioning
The battle to reduce greenhouse gas emissions is heavily focused on replacing fossil fuel power plants with renewable energy and replacing internal combustion engine autos with electric cars. But there is another elephant in the room: air conditioners.
Tipping Points
A tipping point is a point in time when a small thing can make a big change happen. The term was popularized in sociology in recent decades, but really comes from physics where is refers to adding a small amount of weight to a balanced object causing it to topple over.
Satellites And Conservation Science
Satellites orbiting the earth are becoming an increasingly powerful tool for counting and monitoring wildlife populations and to answer a host of other questions about the natural world.