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 …

Sulphide oxidation and carbonate dissolution as a source of CO2 over geological timescales

The observed stability of Earth’s climate over millions of years is thought to depend on the rate of carbon dioxide (CO2) release from the solid Earth being balanced by the rate of CO2 consumption by silicate weathering. During the Cenozoic era, spanning approximately the past 66 million years, the concurrent …

ACREX India 2014: A sustainable foundation for Future India

PRESS RELEASE - Indian HVAC sector to grow at 30 per cent to over Rs 20,000 crore over the next two years March 2014: Moving towards being the largest show on Air Conditioning, Refrigeration and Building Services in the world, ACREX India 2014 ended on a high-note with 30,000 visitors …

Amazon forests soak up more carbon than they emit, new Nasa study finds

A long-standing debate was resolved yesterday when a new Nasa-led study confirmed that natural forests in the Amazon remove more carbon dioxide from the atmosphere than they emit. This means that the 5.5 million square kilometer forest is a crucial factor in reducing global warming. Living trees take carbon dioxide …

First report of India-China joint climate study released

Facing similar challenges in dealing with rising pollution levels in their top cities, India and China on Tuesday released for the first time a joint report to address the issues of climate change, providing practical recommendations for greater bilateral cooperation. ’The China India Low Carbon Study’, the first project of …

Food security, economy to be hit by climate change, leaked IPCC draft report shows

Global warming will displace millions of people, trigger falling crop yields, stoke conflict and cost trillions of dollars in lost economic output, a United Nations report will warn. A draft of the report to be finalised later this month by the Intergovernmental Panel on Climate Change (IPCC) and obtained by …

World's forests could hold 20% more carbon than previously thought: Study

Sao Paulo: The world's forests could hold 20 percent more carbon than previously thought, according to a study released on Tuesday. If correct, that extra 125 billion tonnes of carbon could lead to an increase in the number of forest-based carbon credits set to be offered in carbon markets around …

Earth to get hotter despite global warming slowdown

Earth's climate would continue to warm during this century on track with previous estimates, despite the recent slowdown in the rate of global warming, a new Nasa study has warned. The research hinges on a new and more detailed calculation of the sensitivity of Earth's climate to the factors that …

EU parliament backs law to curb "super" greenhouse gases

The European Parliament on Wednesday backed a law to curb the use of "super" greenhouse gases used in fridges and air conditioners, which have a global warming potential thousands of times greater than carbon dioxide. Lawmakers meeting in Strasbourg, France voted 644 to 19 in favour of a European Commission …

Indian scientists warn of more intense freak weather in coming days

India's states will see more intense unpredictable freak weather in the coming days, warned climate change scientists, days after huge chunks of hail killed at least 10 people and wounded scores in Andhra Pradesh and hail storms this week destroyed cropland across Karnataka and Maharashtra. "The key word is these …

CEA meets carbon free Siripada pilgrimage

The Central Environmental Authority (CEA) has taken an initiative with the assistance of eight other state run institutions and the private sector to make this year’s annual Siripada Pilgrim Season a carbon free event especially considering the area’s sensitive environment. CEA Director General Dr. Saranga Alahapperuma said that their recent …

Swiss Seek Precision as Nations Shape Carbon Market

Nations setting up carbon markets must standardize their emission-reduction benchmarks to ensure international efforts to limit global warming stay on track, according to Switzerland’s climate envoy. At least 30 of 200 countries meeting at talks this week in Bonn are developing carbon trading systems to help meet emissions targets under …

Australia experiencing more extreme heat, high fire danger days, says the latest State of the Climate report

Australia is being hit by more days of extreme heat and high fire danger, trends that may accelerate as the planet heats up, says the latest State of the Climate report by the Bureau of Meteorology and CSIRO. The biennial survey found mean temperatures nationwide had risen 0.9 degrees since …

Slovakia says EU's proposed climate goals unacceptable-PM quoted

Slovakia cannot agree with the European Commission's proposed climate and energy goals that target a 40 percent cut in carbon emissions reductions and increased use of renewable power, Prime Minister Robert Fico was quoted as saying on Monday. The European Union will debate its 2030 goals at summits in March …

Understanding CO2 emissions from the global energy sector

The energy sector contributes about 40 percent of global emissions of CO2. Three quarters of those emissions come from six major economies. Although coal-fired plants account for just 40 percent of world energy production, they were responsible for more than 70 percent of energy-sector emissions in 2010. Despite improvements in …

North American terrestrial CO2 uptake largely offset by CH4 and N2O emissions: toward a full accounting of the greenhouse gas budget

The terrestrial ecosystems of North America have been identified as a sink of atmospheric CO2 though there is no consensus on the magnitude. However, the emissions of non-CO2 greenhouse gases (CH4 and N2O) may offset or even overturn the climate cooling effect induced by the CO2 sink. Using a coupled …

Pan-tropical analysis of climate effects on seasonal tree growth

Climate models predict a range of changes in tropical forest regions, including increased average temperatures, decreased total precipitation, reduced soil moisture and alterations in seasonal climate variations. These changes are directly related to the increase in anthropogenic greenhouse gas concentrations, primarily CO2. Assessing seasonal forest growth responses to climate is …

How to win the argument on climate change: a five-point plan

A paper by Simon Maxwell, Executive Chair of CDKN, offers a five-point plan on how to win the public and policy argument on climate change. Maxwell argues that a plan is necessary because climate change policy is contested, and – like all policy – has winners and losers. The five …

Exploring linkages between national and corporate/facility greenhouse gas inventories

National and corporate/facility level GHG inventory systems can help countries address climate change. However, these systems are often developed independently of each other, and confusion exists regarding the purpose of and need for each inventory type. This working paper seeks to describe national and corporate/facility GHG inventories, highlighting major differences. …

Equity and spectrum of mitigation commitments in the 2015 agreement

Equity and ambition are two issues at the core of the climate negotiations, and they are inextricably linked. Ambition, in the sense of ensuring sufficient mitigation efforts to avoid dangerous interference with the climate system, is a necessary condition to avoid highly inequitable outcomes. Equity, in the sense of ensuring …

Clean energy trends 2014

Now in its 13th annual edition the Clean Energy Trends report has become a must-read in the clean-tech industry. The report includes tracking, forecasting and market sizing of the global solar, wind, and biofuels markets, analysis on solar PV pricing, public market performance, venture capital investments, and energy capacity additions, …

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