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3D printing technology, using heat-resistant metal alloys, is revolutionizing trial-and-error rocket development. Whole structures that would have previously required hundreds of distinct components can now be printed in a matter of days. The key to fast engine development is to reduce the number of parts, which reduces the time it takes to assemble the engine and the disruption caused by supply chain delays. The easiest way to do this is to change manufacturing processes. Space companies are now moving away from subtractive manufacturing processes-which remove material to shape a part-to additive manufacturing processes that build up a part by adding material to it bit by bit.

DRIVERS-TREATMENT-TTHM-POLLUTION-SCARCITY-FUNDING Disinfection by-products (DBP) are a class of chemical by-products also referred to as trihalomethanes (THMs), formed when chlorine or bromine interacts with the natural organic materials found in water. DBPs also include other formed products, such as haloacetic acids, haloacetonitriles, haloketones, and chlorophenols. The composition and levels of specific DBPs are determined by water quality, water treatment conditions, and disinfectant type (IPCS, 2000). Primary sources of DBPs are chlorinated drinking water and recreational water bodies, such as swimming pools. In drinking water, trichloromethane is the predominant DBP, usually found at much higher levels than bromodichloromethane; tribromomethane is the least abundant (Krasner et al., 1989). DBPs are volatile at room temperature and can be detected in ambient air during activities such as showering, bathing, dishwashing, and swimming (Backer, et al., 2000; Gordon et al., 2006). Trichloromethane has industrial applications and is used to produce refrigerants and feedstock. It may be released into the environment where chlorine-based chemicals are used for bleaching and disinfecting processes or disposed at hazardous waste sites (IPCS, 2004; LaRegina, et al. 1986). Tribromomethane has limited industrial uses, mainly in geological assaying, electronics manufacturing, and as a solvent in laboratory analyses (ATSDR, 2005). DBPs tend not to bioaccumulate in aquatic organisms or persist in open or surface waters or soils, but they can remain in water within closed pipe systems. Workplace exposure may occur during the production of trichloromethane or tribromomethane, or in workplaces where DBPs may be generated, such as pulp or paper manufacturing, swimming pools, and water treatment plants (IPCS, 2004).

Scientists continue to invent advanced materials with highly specific properties that outperform existing materials and enable more innovative product designs.

To me this is how leadership leads - The current UN plans want at least 10% of fuel used in global aviation to be sustainable by 2030. The head of Rolls Royce, manufacturer of aircraft engines, feels the industry needs to move quicker. He has committed to making sure their Trent engine can run purely on sustainable fuel by 2023. And Shell has committed to increasing their production tenfold by 2025.

Treasury's just-released Climate Action Plan establishes five priority actions to strengthen and build upon Treasury's climate resilience and adaptive capabilities: (1) rebuilding programs and capabilities that may have atrophied or stagnated in recent years; (2) addressing climate change impacts and vulnerabilities across the range of Departmental operations, including administrative, manufacturing, and law enforcement activities; (3) ensuring a climate-focused approach to managing Treasury's real property portfolio footprint; (4) enabling procurement management to fully consider climate change realities; and (5) providing, measuring, and accounting for a financial investment approach appropriate to the Department's climate objectives.

Article explains that even though 'greener" decisions are being made, the increase in wealth and subsequent demand negates most green efforts just due to volume. For example, we make more fuel efficient cars than we did 20 or 30 years ago, but we are producing 2x as many

Kodiak's fourth-generation truck features a modular and discreet sensor suite in just three locations: a slim profile "center pod" on the front roofline of the truck, and pods integrated into both of the side mirrors. This well-integrated and low profile sensor placement vastly simplifies sensor installation and maintenance, and increases safety. The new generation of Kodiak self-driving trucks will improve the robustness of the autonomous system. It was designed with greater fleet uptime, manufacturing, and serviceability in mind--all of which are critical to scale quickly, safely and efficiently.

The engineering profession won't be exempt from COVID-19 job fallout, but the effects will be temporary. More engineers will be needed than ever before when the world returns to a semblance of normalcy, said Andy Moss, president and owner of M Force Staffing, a Knoxville, Tenn., technical recruiting firm specializing in engineering and manufacturing job placement. "There was already a lack of technical talent before we went into this," Moss says. "This is a horrible situation, but when we come back from it we're going to ramp right back up into the problems we had before. We're not producing enough technical talent to fill the jobs we have." The U.S. Bureau of Labor Statistics projects employment growth for engineers, with nearly 140,000 new jobs expected for engineers from 2016 to 2026. Mechanical engineers were second only to civil engineers in terms of projected new jobs over that time period: civil engineers with 32,200 additional jobs projected and mechanical with 25,300. Industrial, with 25,100 jobs, and electrical, with 16,200, followed behind.

As artificial intelligence tools become more specialized, Moss has one big warning to today's students: stay away from any job AI can take. That doesn't include engineering, though, where there will probably be more jobs created due to the growth of AI, he says. "You'll still have things in engineering design and other aspects of technical work and engineering that a computer just can't do, even if they can think faster than a human."