Tag: Carbon Dioxide

The Lives of Otters

If you walk at night along an open marsh or riverbank, you may well come across an incredible animal. This mammal with two arms and two legs is agile enough to chase and catch a fish underwater and smart enough to use tools. There are as many as 13 distinct species of otter, but I will be focusing on two: the sea otter and the Eurasian river otter. Sea otters recently captured the hearts of millions when they were featured on David Attenborough’s Our Planet. In this piece, I will be looking at what makes otters so special, and what makes them so damn endearing.

Carbon Neutral Lent: Week 1 – Food

Ireland’s carbon footprint is an unusual one. At 34% of the total national emissions, agriculture has a greater impact on our emissions profile than any other European country. For comparison, waste (which includes the footprint of all our plastic) is responsible for just 1.5% of our emissions. Even so, it seems like businesses and well-meaning citizens are far more concerned with ditching plastic straws than they are with reducing the footprint of the foods that we eat.

Carbon Neutral Lent: Individual and Systemic Action

How do we solve climate change? Do we eat less meat? Turn off the lights? Fly less? ‘No!’, I hear you say, ‘we need systemic action!’ To a large extent this is true, but as with all things related to climate change, it is not quite so simple. In this piece, I will be playing devil’s advocate and putting forward some of the arguments for why individual action is also important. Please do not take this to mean that I am a puppet of the corporations.

For Peat’s Sake: Bogs, Bord na Móna and the Climate

Bogs and Irish culture have been intimately linked for centuries, cropping up in everything from our traditional songs to the work of our most beloved poets. They have provided us with energy, clean water, jobs and a home for our wildlife. Globally, degraded peatlands account for a quarter of all carbon emissions from the land-use sector despite covering only 3% of the land. They also contain 30% of the world’s soil carbon; that’s twice as much carbon as is stored in all the world’s forests. It is estimated that more than 80% of Irish peatlands have been damaged in some way.

Gas in the Tank: How Methane could be the Future of Fuel

New research has shown that it may be possible for us to convert methane into fuel cheaply, quickly and on a large scale. The key to this energy revolution will be exploiting a type of bacteria known as methanotrophs. Methanotrophs are incredibly abundant in nature. They account for 8% of all heterotrophs on earth (organisms like us that have to ‘eat’ rather than photosynthesising their food). These incredible bacteria are capable of converting methane into methanol very easily, a process that has been referred to as the holy grail of modern chemistry. If we could perform this conversion as easily as methanotrophs, we could seriously cut down our GHG emissions.

ExxonMobil vs The State: How Governments Can Lower Corporate CO2 Emissions

A report released in 2017 found that over half of all global emissions since 1988 have been produced by just 25 companies. When you take into account the 100 most environmentally damaging companies, known as the ‘Carbon Majors’, that figure rises to over 70%. Even so, we are constantly told that individual actions like using canvas bags and taking the bus will be enough to avoid the catastrophic effects of climate change. The truth is that the onus is on the major greenhouse gas emitters like Exxon Mobil and Shell Oil to simply stop extracting and distributing fossil fuels. Unfortunately, the pressures of the competitive market mean that they are not going to do this without a push.

Getting High on Grass – Can Plants Really Fuel a Plane?

Humans have been using biofuels for as long as we’ve been using wood to fuel our fires. In the last hundred or so years, however, we’ve begun to understand how plant matter can be converted into liquid fuels that could soon power a plane. In this piece, I’ll be looking at where biofuels are now and where they need to be if they are to significantly reduce CO2 emissions.