Energy and environment

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Med trådløs overvåking kan det være mulig å få ned drifts- og vedlikeholdskostnader på vindmøller offshore. Illustrasjonsfoto: Morguefile

ABC — anything but coal

Policymakers, industry and government officials will have to invest US $2.5 trillion for electricity generation over the next 20 years. A new report presents the environmental costs and benefits linked to different renewable energy sources, and makes one thing abundantly clear: anything is better than coal.

Balsaflåte

Kon-Tiki2 expedition in Heyerdahl’s wake

The Kon-Tiki2 expedition aims to both reinforce and challenge Heyerdahl’s theories – and NTNU will gather unique research material from the major oceans that the expedition crosses

En viktig måte å kutte klimagassutslippene på er å fange CO2 fra skorsteinene, som disse i Hellas. Men forskerne sier vi må også sørge for kutt i CO2-utslippene fra blant annet varene vi kjøper og maten vi spiser. Foto: Thinkstock

Two tickets to Paris to talk about carbon cuts

NTNU was given only two admission tickets to the UN climate talks in Paris later this month. The tickets will be used in part by two researchers from the university’s Industrial Ecology Programme to give a workshop about carbon accounting.

Bærekraftig utvikling? Hva er nå det? Foto: Thinkstock

A climate dictionary

Have you ever wondered what climate scientists are really saying, but find it a little embarrassing to ask anyone about the language? Here is a glossary that explains commonly used technical terms.

Bioenergi er én metode for å kutte utslippene av biogasser. Foto: Thinkstock

Timing is everything for renewable energy use

There’s no time to waste in shifting to renewable energy sources if we are to avoid dangerous climate change. That’s especially true when it comes to bioenergy, which causes a temporary increase in CO2 levels that is later removed as replacement biostocks grow.

Metanhydrater er en type is som inneholder fanget metan. Forskere har fått mer innsikt i hvordan dette uvanlige stoffet reagerer på ytre belastning. Foto: Geir Mogen

Uncovering secrets of ice that burns

Methane hydrates can be seen as a potential energy source or as a dangerous source of methane – a greenhouse gas that is 20 times more potent than CO2. With the help of a supercomputer and an interdisciplinary team, scientists have uncovered important details about their stability if they are disturbed by human-induced or natural forces.

Sel med pakkebåndSysselmannen på Svalbard

Awash in trash at the top of the world

Every year, an estimated 8 million metric tons of plastic waste blows, falls or flows into the world’s oceans. Earlier this autumn, participants in the annual Svalbard Course plucked up 512 kg of the stuff from just one beach in two hours.

Hvilke klimatiltak er det praktisk mulig å få til? Den truete bonoboen eller dvergsjimpansen i DR Kongo er blant de mange artene som har jungelen som sitt hjem. Foto: Privat

Turning political pledges into action on climate change

Beginning on 30 November, the nations of the world will gather in Paris to discuss a new global agreement on climate change. But what will it take to transform international political will into real action to curb global warming?

RV Lance tilbrakte seks måneder i Arktis, forankret til flere isflak, som tillot forskere å gjennomføre en vugge-til-grav studie av havisen i Arktis. NTNU-forskere var blant forskerne om bord. Foto: Åse Ervik
111 days in the ice

Drilling down to understand sea ice

Global warming is upending virtually everything that scientists know about the Arctic ice cap. During the first half of 2015, a multinational team of researchers froze the RV Lance into the Arctic ice to learn more about how this ice has changed. NTNU researchers were among the scientists seeking to learn more about this changing environment.

KM «Amundsen Spirit», ett av mange skip som har Kongsberg Gruppens system installert. Foto: Kongsberg Maritime

The jewel in the crown

“Dynamic positioning” has been hailed as “the jewel in the crown” and Norway’s greatest engineering feat since World War II. But what is it?

Aluminium er ikke bare aluminium. Ulike legeringer og forurensninger gjør det vanskeligere å resirkulere enn du kanskje trodde. Foto: Thinkstock

Recycling aluminium, one can at a time

Producing pure aluminium from ore accounts for as much as 1 per cent of all greenhouse gas emissions worldwide. Recycling is the best way to reduce that carbon footprint – but manufacturers and recycling companies will have to plan carefully to avoid problems with impurities that accumulate in recycled aluminium over time.

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Carving up the global carbon pie in a new way

When negotiators come to Paris this December to discuss a binding and universal agreement on controlling climate change, they have to know how much each country contributes to the greenhouse gas emissions problem. A new method offers the best hope yet for accurately accounting for these emissions by providing the right incentives and assigning fair responsibilities.

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Predicting a safe lifetime for risers

More than 90 percent of Brazil’s petroleum reserves are found in deep water or ultra-deep water areas offshore. Researchers at SINTEF’s Brazil office are using advanced modelling and testing, including neural networks, to improve the lifespan and safety of a key component used to exploit these deep water reserves.

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A Third Industrial Revolution for Norway

Norway’s wealth and prosperity over the last four decades has been built on oil, but Jeremy Rifkin, a futurist and social and economic thinker, says it’s time for the country to change. The Third Industrial Revolution is coming, and Norway needs to abandon fossil fuels and move towards a greener future that relies on renewable energy, shared transport and ultra-efficient housing.

Photo by Brage Hansen_reindeer on ice

Extreme weather in the Arctic causes problems for people, wildlife

The last week of January 2012 brought wild weather to the Norwegian arctic island archipelago of Svalbard and its largest town, Longyearbyen. A new cross-disciplinary study provides a comprehensive look at the effects of this extreme weather event on everything from town infrastructure to the natural environment.

from Thinkstock.com

Low-carbon electricity future is clean and feasible

The countries of the world wrapped up preliminary climate talks in Lima, Peru this weekend with an agreement on how the UN’s 194 countries will tackle climate change. The agreement comes in advance of major negotiations scheduled for Paris next year to designed to curb the world’s production of greenhouse gases. In a publication from earlier this year, researchers at NTNU’s Industrial Ecology Programme report that the low-carbon future that would result from curbing greenhouse gas emissions is both feasible from a practical standpoint, and will also substantially reduce air pollution.