Carbon Dioxide

Residual emissions to be tackled to meet net-zero goal in 2050: Study

Calling for strategies to tackle residual emissions, scientists said they would need to be balanced by carbon dioxide removal techniques to meet net-zero goals, meaning that greenhouse gases (GHG) entering the atmosphere are offset by those being removed. Residual emissions are those that remain after efforts to eliminate GHG emissions have been implemented. For example, agriculture and shipping industries are likely to continue releasing GHG in the atmosphere, even with concerted efforts towards eliminating emissions. "Our plans are not adequate to meet the goal of limiting the earth's temperature increase to no more than 1.5 degrees Celsius by 2050," said lead researcher Holly Jean Buck, assistant professor of environment and sustainability, University of Buffalo, New York, US. Buck and her international team argued for a better understanding of residual emissions in their paper published in the journal Nature Climate Change. They said that according to long-term strategies of ..

Carbon dioxide emissions reached a record high in 2022, says IEA

In Europe, electricity generation from wind, solar power exceeded gas or nuclear for the first time

How CO2 removal can take us back to ideal state of pre-industrial era

There are good reasons for governments to utilize novel CDR methods at the same time as expanding established land-based carbon capture and storage

Big gap in carbon removal effort key to climate goals, says study

Most current greenhouse gas removal is achieved by planting trees and managing forests and other natural carbon sinks, which themselves are under considerable threat

Green pathways present a $1.6-trn investment window: World Bank report

The report also suggests adopting climate-responsive cooling techniques in both private- and government-funded constructions

Geo-engineering and climate control

The idea of engineering the atmosphere to stave off global warming is increasingly gaining popularity, but it raises several issues

COP27: Biofuels and green H2 to power India's low-carbon growth

Minister outlines plan for carbon reduction

Climate change: Carbon dioxide emissions rising globally, but drop in China

The world is projected to spew 40.6 billion tonnes of CO2 (GtCO2) into the atmosphere in 2022, with no sign of the decrease that is urgently needed to limit warming to 1.5 degree Celsius, according to a new report released on Friday, coinciding with the UN climate summit in Egypt. The projection of 40.6 GtCO2 total emissions in 2022 is close to the highest-ever annual total of 40.9 GtCO2 in 2019. If current emissions levels persist, there is a 50 percent chance that warming of 1.5 degree Celsius will be exceeded in nine years, according to the "Global Carbon Budget 2022" report by a group of scientists who track emissions and publish in peer- reviewed scientific journals. 1.5 degree Celsius is the preferred warming limit set by the 2015 Paris Agreement -- a limit that countries hope will be sufficient to avoid the worst impacts of climate change. Earth's global surface temperature has increased by around 1.1 degree Celsius as compared to the average in the pre-industrial (18501900)

Mangroves as carbon sink: India joins five-nation alliance at COP27

India is among the first five countries to join the MAC, at the 27th session of the Conference of the Parties (COP27) at Sharm el-Sheikh in Egypt

3 things a climate scientist wants world leaders to know ahead of COP27

3 things a climate scientist wants world leaders to know ahead of COP27

By Andrew King Senior Lecturer, The University of Melbourne

Melbourne, Nov 3 (The Conversation) World leaders and climate experts are gathering for pivotal United Nations climate change talks in Egypt. Known as COP27, the conference will aim to put Earth on a path to net-zero emissions and keep global warming well below 2 degree celcius this century.

The world must rapidly decarbonise to avoid the most dangerous climate change harms. World leaders know this. But that knowledge must urgently turn into concrete commitments and plans.

If humanity continues on its current path, we are going to leave a hotter, deadlier world for the children of today and all future generations.

Earth desperately needs COP27 to succeed.

I am a climate scientist and I believe world leaders should have these three things top-of-mind heading in

Ethereum upgrades technology to cut CO2 output by 99%: Report

Even though completed, the Merge could be followed by days or even weeks of hiccups, based on what happened after some prior Ethereum software updates

Sembcorp Industries sells India unit to Tanweer Infra $1.47 billion

By 2025, Sembcorp aims to quadruple its gross installed renewable energy capacity to 10 Gw

Need to adopt new tech in metals sector to reduce emissions: Scindia

Steel Minister Jyotiraditya M Scindia on Friday said the metal sector is highly energy-intensive which causes large carbon emissions, and there is a need to adopt new technologies for attaining the zero-emission target. The iron and steel industry globally accounts for around 8 per cent of total carbon dioxide emissions on an annual basis, whereas in India, it contributes 12 per cent to the total CO2 emissions. In today's world nothing is waste and all so-called wastes can be converted into resources by adopting suitable technology, the minister stated. Speaking at an international conference on circular economy and resource efficiency, Scindia said majority of natural resources are finite, so it is important to find environmentally and economically feasible ways to utilise these resources. The country's mining and metal sector, he said, is posed for robust development due to expected jump in demand to support the growth in the automotive, infrastructure, transport, space and defen

NTPC starts capturing CO2 from flue gas stream at Vindhyachal plant

State-owned power giant NTPC on Friday said it has started capturing carbon dioxide (CO2) from the flue gas stream at its thermal plant in Vindhyachal. "As part of its commitment towards Net Zero by 2070, NTPC Ltd, India's largest integrated power company has captured its first CO2 on 15th August 2022 from flue gas stream of 500 MW coal based power plant (Unit-13) at Vindhyachal Super Thermal Power Station (VSTPS)," a company statement said. According to the statement, this plant is designed to capture 20 tonnes of CO2 every day. This initiative will pave the way for scaling up CO2 capture technology and greening the coal power generation. At the same location, NTPC is also setting up a green hydrogen generation plant, which will use Proton Exchange Membrane Electrolyzers to produce 2 tonnes per day of hydrogen. Subsequently, 20 tonnes per day of captured CO2 and 2 tonnes per day of hydrogen will be utilised to produce 10 tonnes per day of green methanol through a heterogeneous ...

Proposed carbon credit mandate to open green avenues for industry

Market expected to grow to $200 billion; industry awaits further clarity on rules

What are carbon credits?

Investors happily bid adieu to another profitable financial year. Environmentalists too were a relieved lot as the concept of carbon credits was gaining ground. Find out more about carbon credits

CIL efforts to curb environmental pollution result in significant CO2 cut

State-owned CIL on Wednesday said its efforts to curb environmental pollution through the implementation of mechanised coal transportation and loading

How to decarbonise

Central planning in decarbonisation will impose excessive costs upon society

China releases action plan to peak carbon dioxide emissions before 2030

China is the world's largest greenhouse gas producer

Climate justice and India's choice

As the fourth-largest source of emissions, India will be noticed if a strong climate transition does not commence