Earth Wise
Renewables Beat Out Coal In Europe
Last year was the first year in which more electricity in Europe was generated from the combination of wind, sun, and biomass than from coal. The combination of all clean energy sources (which adds hydropower to the mix) surpassed coal several years ago.
The Restoration Economy
Deforestation is one of the largest contributors to climate change. Forests cover about 30% of the world’s land area and are a crucial sink for carbon dioxide. Over time, we have been steadily reducing the amount of forest in the world to obtain wood and timber, open up farmland, build towns and cities, produce paper, make palm oil, and mine for minerals.
2017 Was Hot
There’s no argument to be made about whether 2017 was hot or not. The only uncertainty is whether it was the second or third warmest year ever recorded.
Making Room For Wildlife
Protecting biodiversity is a critical challenge facing humanity. Global vertebrate populations – from elephants to amphibians – declined by 58% from 1970 to 2012 and losses are expected to reach 67% in the next two years. Think about it: at least two-thirds of all vertebrate animals on earth have vanished over the lifetime of anyone fifty years old or over.
The Last Straw
Every day, Americans throw away 500 hundred million plastic straws. That’s enough to circle the Earth twice. Each one of us uses more than 35,000 of them in a lifetime. And these estimates are probably low.
U.S. Offshore Wind Powering Up
After many years of false starts and delays, the offshore wind industry in the U.S. finally seems to be gaining momentum. According to the Department of Energy, more than 25 offshore wind projects with a generating capacity of 24 gigawatts are now being planned. Most of these are off of the Northeast and Mid-Atlantic coasts.
Trends Influencing Our Cities
The Environmental Protection Agency removed its information hub about climate change last year. In response, 17 cities reposted the information on their own city government sites. This is indicative of the fact that cities are increasingly taking on a leadership role in environmental, social and economic change.
Major Investments In Solar Power
There is big money going into renewable energy and energy-smart technologies and half of that is going into solar power. In 2017, global investments in green energy reached $334 billion and $161 billion of that was in solar.
The Automobile Future: Dream or Nightmare?
Visionaries tout a future in which cars are electric, self-driving, and shared. All three of these things are starting to happen today, but will they come together to produce a future where congestion and pollution are things of the past?
[Read more…] about The Automobile Future: Dream or Nightmare?
Climate Change Threatens the U.S. Military
According to a new study from the Pentagon, nearly half of United States military sites are threatened by wild weather linked to climate change. The U.S. Department of Defense states that drought, wind, and flooding that occur due to reasons other than storms topped the list of natural disasters that endanger 1,700 military sites around the world – everything from outposts to large bases.
[Read more…] about Climate Change Threatens the U.S. Military
Turning Heat Into Electricity
Many of our technologies produce waste heat. Internal combustion engines are a prime example, but all our industrial processes, motors, electronics and other machinery turn some (and, in many cases, most) of the energy it takes to run them into heat that just goes into the environment.
Reviled Animals Can Be Beneficial
Predators and scavengers are widely persecuted by people because they are often harmful to property, livestock, and human beings. Nonetheless, research has shown that many of these animals play important roles in ecosystems and their removal can be quite harmful.
Indirect Greenhouse Gas Emissions
When considering the greenhouse gas emissions associated with any energy source, it is important to look at the total life cycle emissions both from the direct use of the energy source and from the indirect emissions associated with building the system, producing and transporting fuels and other supplies and, ultimately, decommissioning the system. Taking all of this into consideration is necessary in order to have a full accounting of the carbon impact of power sources.
Endangered Chocolate
There are many scary stories floating about with regard to dire potential consequences of climate change, but one that should really strike fear into many of our hearts is the prediction from scientists at the National Oceanic and Atmospheric Administration that cacao plants are likely to go extinct as early as 2050 as a result of the changing climate.
Natural Climate Solutions
The Paris Climate Agreement embodies a commitment to hold the increase in the global average temperature to less than 2 Celsius degrees above preindustrial levels. Most strategies to achieve this goal involve reductions in greenhouse gas emissions from human activities such as burning fossil fuels as well as various land use activities. But there are also so-called Natural Climate Solutions, which relate to the storage of carbon and reduction in carbon emissions across global forests, wetlands, grasslands, and agricultural lands.
A Carbon Loophole
Many power plants in Europe and elsewhere are replacing coal with wood. For example, the Drax Power Station in Britain was its largest coal-burning plant and is now using wood pellets shipped from the southern U.S. in its boilers. According to the carbon accounting rules at the EU and elsewhere, the process is considered to be “carbon neutral.” But is it?
The idea is that new trees are being planted in the forests where the trees are cut to be burned in power plants. So, there is carbon neutrality. In principle.
European countries have embarked on a massive effort to switch to generating power from renewable energy. While there has indeed been major growth in wind and solar power in the 28 countries of the European Union, much of the new “green” power has come from burning wood in converted coal power stations.
A group of 200 scientists wrote to the EU last September insisting that bioenergy from forest biomass is not carbon neutral and that there must be tighter rules to protect forests and their carbon. Wood burning has become a loophole in controlling carbon emissions.
There are problems with the claims of carbon neutrality. There is no way to know whether enough new trees are actually being planted to replace those being burned. And then there is the time lag for tree replacement. Trees don’t grow overnight. There are also the carbon emissions associated with harvesting, processing and transporting wood.
There are most certainly ways in which burning biomass can be carbon neutral and can represent real progress over the use of fossil fuels. But caution must be taken to avoid exploiting loopholes in current climate rules that might actually result in increased carbon emissions.
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Carbon Loophole: Why Is Wood Burning Counted as Green Energy?
Photo, posted April 26, 2014, courtesy of Flickr.
‘A Carbon Loophole’ from Earth Wise is a production of WAMC Northeast Public Radio.
