Carbon Dioxide

Renewables 2024 global status report: global overview

This overview sets the scene for the various modules in the Renewables 2024 Global Status Report Collection. It provides high-level trends on the status of renewables in the wider fossil fuel-dominated energy system in the context of global challenges such as climate change, development goals and the geopolitical landscape. Urgent …

HIsarna holds big hope for green, low-cost iron making: Tata Steel

Jamshedpur The HIsarna iron making technology being developed jointly by a consortium of steelmakers in Europe led by Tata Steel, holds prospects of not only being a major green technology but also promises 25% savings in terms of capital expenditure (capex) and operational expenditure (opex). The technology, which has steel …

UN report warns of widening climate gap

A U.N. report on rising greenhouse gas emissions reminded world governments on Wednesday that their efforts to fight climate change are far from enough to meet their stated goal of limiting global warming to 2°C (3.6°F). The report by the U.N. Environment Programme, released just days ahead of a major …

Greenhouse gases rise to record levels

The volume of greenhouse gases causing global warming rose to a new high last year, the UN World Meteorological Organisation said Tuesday, warning it is becoming increasingly unlikely the world can limit rising temperatures to UN-backed targets. Levels of carbon dioxide (CO2) -- the single most important man-made contributor to …

Emissions Gap report warns of urgent need for climate change action

Action to tackle climate change needs to be urgently scaled up if the world is to have any chance of keeping a global temperature rise below 2 degrees C this century, according to UN Environment Programme (UNEP) research. The Emissions Gap Report, coordinated by UNEP and the European Climate Foundation, …

Life in the concrete jungle

Ecologists are exploring how people, buildings, wildlife and pollution interact in the world’s cities.

MPs skip climate meetings in Doha

FOR THE first time in several years Australia will not be represented by a minister at a major round of international climate change negotiations, with Greg Combet set to miss talks in Doha starting next week. Mr Combet said he was not attending because after a long year bedding down …

World greenhouse gas levels hit fresh records

Atmospheric volumes of greenhouse gases blamed for climate change hit a new record in 2011, the World Meteorological Organisation (WMO) said in its annual Greenhouse Gas Bulletin on Tuesday. The volume of carbon dioxide, the primary greenhouse gas emitted by human activities, grew at a similar rate to the previous …

China, others reject new climate 'regime' in clash with US

China, India, South Africa and Brazil said a climate agreement expected to take effect in 2020 won't be a “new regime,” potentially setting up a confrontation with the US, which is seeking to eliminate a firewall in negotiations between developed and developing nations. The four countries are reining in expectations …

The emissions gap report 2012

The greenhouse gas emissions levels are now around 14 per cent above where they need to be in 2020 shows this UNEP report developed by 55 scientists from 22 countries. Warns that if nations do not act promptly, the emissions are likely to be at 58 gigatonnes in eight years' …

More than 1,000 new coal plants planned worldwide, figures show

World Resources Institute identifies 1,200 coal plants in planning across 59 countries, with about three-quarters in China and India More than 1,000 coal-fired power plants are being planned worldwide, new research has revealed. The huge planned expansion comes despite warnings from politicians, scientists and campaigners that the planet's fast-rising carbon …

German minister backs EU proposal to squeeze carbon market

Germany's environment minister has come out in support of a European Commission proposal to prevent the collapse of its instrument for cutting carbon emissions by withdrawing some emission permits from the market. Peter Altmaier, an influential figure in Chancellor Angela Merkel's Christian Democrats (CDU), told Reuters he hoped the ruling …

Greenhouse gas volumes reached new high in 2011: survey

Atmospheric volumes of greenhouse gases blamed for climate change hit a new record in 2011, the World Meteorological Organization (WMO) said in its annual Greenhouse Gas Bulletin on Tuesday. The volume of carbon dioxide, the primary greenhouse gas emitted by human activities, grew at a similar rate to the previous …

The state of greenhouse gases in the atmosphere based on global observations through 2011

The amount of greenhouse gases in the atmosphere reached a new record high in 2011, according to the World Meteorological Organization. Between 1990 and 2011 there was a 30% increase in radiative forcing – the warming effect on our climate – because of carbon dioxide (CO2) and other heat-trapping long-lived …

Catchment productivity controls CO2 emissions from lakes

Most lakes are oversaturated with CO2 and are net CO2 sources to the atmosphere, yet their contribution to the global carbon cycle is poorly constrained. Their CO2 excess is widely attributed to in-lake oxidation of terrestrially produced dissolved organic carbon5. Here we use data collected over 26 years to show …

Mangroves under threat from shrimp farms, UN study says

Valuable mangrove forests that protect coastlines, sustain sealife and help slow climate change are being wrecked by the spread of shrimp and fish farms, a UN-backed study showed on Wednesday. About a fifth of mangroves worldwide have been lost since 1980, mostly because of clearance to make way for the …

EU carbon market needs quick fix and deep reform -Commission

The European Union must agree by the end of this year on a stop-gap measure to tackle the virtual collapse of its main instrument for cutting carbon emissions, the bloc's climate boss said on Wednesday. Allowances on the EU Emissions Trading Scheme (ETS) sank below 8 euros a metric ton …

New research finds mine waste could provide an effective CO2 trap

It's time to economically value the greenhouse gas-trapping potential of mine waste and start making money from it, says mining engineer and geologist Michael Hitch of the University of British Columbia (UBC). Hitch studies the value of mine waste rock for its CO2-sequestration potential, or "SP." He says mining companies …

Mangroves under threat from shrimp farms: U.N.

Valuable mangrove forests that protect coastlines, sustain sealife and help slow climate change are being wrecked by the spread of shrimp and fish farms, a U.N.-backed study showed on Wednesday. About a fifth of mangroves worldwide have been lost since 1980, mostly because of clearance to make way for the …

Energy [r]evolution: a sustainable energy outlook for India 2012

This new report published by Greenpeace presents a roadmap to achieve sustainable energy system in India now and for generations to come. The second edition of India Energy [R]evolution in 2012 provides a practical pathway for India to secure its energy particularly electricity supply to achieve its long-term ambitious economic …

Global wind energy outlook 2012

The fourth edition of the Global Wind Energy Outlook shows that wind power could supply up to 12% of global electricity by 2020, creating 1.4 million new jobs and reducing CO2 emissions by more than 1.5 billion tons per year, more than 5 times today’s level. By 2030, wind power …

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