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Four mechanical engineering students from Nashik have invented a device which is an indicator for the vehicle driver about excessive pollutant levels, while driving. When the engine of the vehicle starts, the sensor fitted in the silencer will sense the exhaust particles and check the limit value. If it exceeds the prescribed limit then a red light will blink as the first indicator, for two hours. Even after the first warning, if there is no change in the limit then there are two more indicators that will blink within a gap of two hours after which the engine will automatically turn off. According to the four inventors, the device will help in tackling the pollution issue, especially in densely-populated and polluted areas.

The EU is considering placing limits on carbon dioxide emissions from commercial trucks, which account for about 25% of the region's road emissions.

A draft report from the UN Intergovernmental Panel on Climate Change estimates that the world will have to cut greenhouse gas emissions between 40% and 70% from 2010 levels by 2050 to limit global average temperature increases to 2° C above pre-industrial levels. The report summarizes the 3 major UN climate reports released over the past year.

McDonald's is offering 100% organic beef hamburgers sourced from organic farms for a limited time in Germany. The company's new offering will be available from Oct. 1 to Nov. 18.

A new peer-reviewed study shows that widespread use of algae in animal feed could help limit the rise in global temperature to 2°C by 2100 and possibly even turn back the clock, bringing atmospheric carbon concentrations down to pre-industrial levels by the end of the century. Algae-based feeds have proven to be equal to or better than other feedstocks in nutritional value and digestibility, and could free large swaths of arable land and simultaneously address food security issues in an era of rising demand for animal proteins.

Shipowners are increasing pressure on the International Maritime Organization to craft carbon dioxide limits to help curb climate change. Critics contend IMO is moving too slowly, while the IMO says it needs to gather data to make an informed decision.

The International Energy Agency (IEA) estimates that more than 1 million electric vehicles (EVs) were on the road in 2015, including 400,000 in the United States. In order to limit global warming to 2°C or less, the agency says the world will need 150 million EVs by 2030 and 1 billion by 2050, implying a 21 percent compound annual growth rate from now until 2050.

Using automatic analysis, Global Forest Watch's new PALM Risk Tool determines the level of risk that a particular mill is using palm oil from illegally deforested sources, making it a powerful platform for companies to not only better understand their supply chains, but figure out how to mitigate risk and allocate limited resources towards achieving zero-deforestation goals.

America's energy economy is growing cleaner, but the country's embrace of gas and renewables is driving conventional energy giants to ship fossil fuels to buyers overseas. That might limit the climate impact of the greener U.S. energy economy, experts say. "The Obama administration wants to be seen as a climate leader, but there is no source of fossil fuel that it is prepared to leave in the ground," said Lorne Stockman of Oil Change International

Stricter regulations, the explosive growth of new hydraulic fracturing shale oil and gas wells and limited available water resources are driving the popularity of centralized wastewater management in North America, according to Pollution Engineering magazine

As evidence mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet

mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet.

The Intergovernmental Panel on Climate Change's newest installment, Working Group III: Mitigation and Climate Change, highlights an important message: It's still possible to limit average global temperature rise to 2°C - but only if the world rapidly reduces emissions and changes its current energy mix.

President Barack Obama today announced a major expansion of the Pacific Remote Islands Marine National Monument, rendering large areas of the central Pacific off-limits to fishing and energy exploration. The move will expand the marine sanctuary to more than 780,000 square miles.

The Environmental Protection Agency's rule to limit greenhouse gas emissions by power plants has been overturned by the Supreme Court. The 5-4 ruling said the EPA was wrong to not have "properly" considered the "punishing costs" of abiding by the rule. However, many utilities have already started to make changes to be in compliance

Mars has supported recommendations that suggest people should limit the consumption of added sugars to no more than 10% of their daily caloric intake. The company also voiced support of a government proposal to include an added sugars declaration in the Nutritional Facts on all applicable food packaging.

The key global goal of limiting global warming to 2 degrees Celsius is already beyond reach as negotiators begin planning a 2015 climate treaty, experts say. "There is nothing that can be agreed in 2015 that would be consistent with the 2 degrees," said former United Nations climate chief Yvo de Boer. "The only way that a 2015 agreement can achieve a 2-degree goal is to shut down the whole global economy

  (LUIS ACOSTA/Getty Images) Efforts to prevent illegal logging in the Brazilian Amazon can reduce the impact of certain diseases, a study has found. Logging creates mosquito-friendly areas and subsequently increases malaria infections, while strict forestry regulations can reduce infection rates for several diseases by limiting the number of people passing through forested areas

The proposed Pebble Mine in southwestern Alaska is a project of almost unfathomable scale. The Pebble Limited Partnership intends to excavate a thick layer of ore - nearly a mile deep in places - containing an estimated 81 billion pounds of copper, 5.6 billion pounds of molybdenum, and 107 million ounces of gold. The mine would cover 28 square miles and require the construction of the world's largest earthen dam - 700 feet high and several miles long - to hold back a 10-square-mile containment pond filled with up to 2.5 billion tons of sulfide-laden mine waste. All this would be built not only in an active seismic region, but also in one of the most unspoiled and breathtaking places on the planet - the headwaters of Bristol Bay, home to the world's most productive salmon fishery. Composed of tundra plain, mountain ranges, hundreds of rivers, and thousands of lakes, the greater Bristol Bay region encompasses five national parks and wildlife refuges, and one of the largest state parks in the U.S.

A CDP poll of 2,000 publicly traded companies found that nearly half - including a majority of fossil fuel energy companies - support negotiation of a climate agreement to limit global warming. 

The solar-powered compactor packs 16 yards of loose trash into just 4 yards, reducing waste pick-up at the busy property to just once per week, thus slashing hauling costs by 50 percent, reducing CO2 emissions by more than 14 tons annually, and importantly limiting garbage truck noise to guests and neighboring residents.