Mitigating noise and emissions from new aircraft technologies
Tetra Tech hosted the biannual meeting of the Society of Automotive Engineers (SAE) International A-21 Committee on Aircraft Noise Measurement and Aircraft Noise/Aviation Emission Modeling on June 12 and 13, 2019, in Arlington, Virginia. The committee includes leading international experts in the modeling and measurement of aircraft noise and air emissions and supports the International Civil Aviation Organization Committee on Aviation Environmental Protection (ICAO CAEP).
At Sappi, we believe it takes great people to make great products. We offer many opportunities for rapid advancement and a culture that fosters innovation and creativity while positively impacting the communities in which we operate.
Our recruitment efforts begin at the high school level—talking to students about the value of Science, Technology, Engineering and Math (STEM) education, and how our industry can help support them with scholarships and co-op job opportunities.
By Jason Abiecunas, Director of Distributed Energy Resources; Daniel Chang, Market Development Services Lead for Distributed Energy Resources; and Randal Kaufman, Sales Director for Black & Veatch’s Transformative Technologies business
The changing energy landscape is prodding businesses to rethink how they use and manage electricity, and 3M Co.’s aggressive shift to renewable energy illustrates that thirst for sustainability.
$10 trillion dollars. If you run, work for, or are seeking to invest in a global company, this is a figure that should be top of mind. $10 trillion is larger than the annual GDP of all but two of the world’s economies. $10 trillion is nearly double the market cap of the Dow Jones Industrial Average companies. And yet, $10 trillion is just a fraction of the financial might working to transform how companies view and invest in sustainability.
Propex GeoSolutions recently became the first High Performance Turf Reinforcement Mat (HPTRM) manufacturer to verify the carbon footprint of its erosion control solutions. The cradle-to-grave carbon footprint of PYRAMAT® 75 HPTRM is 2.7 kgCO2e per 1m2 of material, which is equivalent to driving about seven miles.
Did you know it costs more to ship 100 pounds of feathers, than 100 pounds of bricks? Shipping costs are determined by volumetric weight, a pricing technique for commercial freight transportation which uses an estimated weight that is calculated from the length, width, height of a package. A less dense item generally occupies more volume of space, in comparison to its actual weight – so when you are transporting items you are essentially paying for the space your product is occupying in the airplane or truck carrying it.
Efforts to reduce nutrient levels are shifting and becoming more widespread as water and wastewater utilities work to improve effluent and adhere to regulations
Nutrient pollution and the resulting excess of nutrients in waterbodies continues to plague aquatic environments around the world, threatening waterways, fish and plant life — and even public health. The runoff of phosphate and nitrogen from farming, stormwater, wastewater treatment plant discharges and other sources into waterbodies continues to unbalance ecosystems, resulting in toxic algal blooms and hypoxic dead zones.
Nontraditional delivery methods are gaining ground when commissioning large-scale water projects
There are an estimated 240,000 water main breaks every year in the United States, and those ruptures waste between 14 percent and 18 percent of the nation’s drinking water. Aging infrastructure is primarily to blame, as an estimated 40 percent of U.S. water and wastewater pipes are beyond their life expectancy, notes a recent article in WaterWorld.