Thanks, Nick, and good morning, everyone. Let's start off on Slide four, please. And let me start off by echoing Nick's comment, we had a very strong start to the year. Harsco's first quarter consolidated revenues from continuing operations increased to $496 million, up 9% compared with the prior year quarter, including the impact of foreign exchange. The increase was primarily driven by pricing and increased demand for environmental services within both our Clean Earth and Harsco Environmental segments. Adjusted EBITDA totaled $63 million, which is above our prior guidance range and represents a 28% improvement from the prior year. Each of our segments realized stronger-than-anticipated performance. Clean Earth results were better than expected due to improved service efficiencies, higher hazardous waste volumes, particularly from industrial and retail customers and additional dredged material that we processed. We also continue to see increased labor productivity as well as cost improvements from the continued execution of our initiatives. For Harsco Environmental, results were higher than anticipated due to better services demand and mix despite lower customer production as well as strong performance by certain ecoproducts businesses in North America. Relative to the prior year quarter, the EBITDA increase was driven by Clean Earth as a result of price increases, higher volumes and cost improvements. Our adjusted loss per share was $0.11 for the quarter, which also compares favorably to our February guidance. Free cash flow for the quarter was $12 million, an improvement both year-on-year and sequentially. This improvement was helped by the receipt of cash from our China-based customers, along with our other ongoing cash management efforts. Lastly, as Nick mentioned, our net leverage decreased to below 5 times at quarter end. And as I mentioned last quarter, we expect our leverage to be near 4 times at year-end prior to considering any asset sales. So please turn to Slide five and our Environmental segment. Segment revenues totaled $273 million and adjusted EBITDA was $44 million for the quarter. Revenues increased year-on-year due to higher services pricing and demand, while adjusted EBITDA decreased by $4 million year-on-year. The EBITDA change from the prior year was largely driven by foreign exchange translation and the impact of prior year Brazil tax credits, which did not repeat in 2023. The impact of site exits, cost inflation and lower commodity prices also affected results and were partially offset by higher services activity at certain sites as well as our contractual price increases. Overall steel output at our customer sites decreased approximately 1% year-on-year and was little changed sequentially. Production performance varied by region, of course, with weak production in Europe and Latin America, offset by growth in India, China and North America. Next, please turn to Slide six to discuss Clean Earth. For the quarter, revenues totaled $222 million and adjusted EBITDA was $27 million. Compared to the first quarter of 2022, revenues increased 17%. Approximately two-thirds of this increase was price driven. Volume increased mid-single digits compared with the prior year quarter, resulting from both increased number of collection stops as well as the underlying volume of waste processed. Hazardous materials revenues reached $186 million, up 17% year-over-year with the growth led by industrial markets, followed by retail. Meanwhile, soil and dredge revenues totaled $36 million for the quarter, and this represents an increase of 15% over the prior year with higher dredge volumes and activity at various sites in the Northeast, driving the higher revenue. Clean Earth's adjusted EBITDA increased $17 million year-on-year, and margin improved approximately 700 basis points to over 12%. This improvement reflects the benefits of price, volume and productivity gains as well as specific cost initiatives we've implemented across the business, which totaled roughly $3 million in the quarter. Overall, for Clean Earth, we are very pleased and excited about the results. Clearly, our price and cost initiatives are delivering the results we planned for, and underlying demand appears firm. Now please turn to Slide seven for our revised 2023 outlook. And note that our detailed segment outlook can be found in the appendix to our slides. Harsco's full year adjusted EBITDA is now expected to be within a range of $260 million to $275 million, and this compares to the prior range of $240 million to $260 million, with our new midpoint up 17% year-on-year. This revised guidance translates to an adjusted loss per share of between $0.12 and $0.33. And lastly, we are targeting free cash flow of $25 million to $45 million for the year. So let me conclude on Slide eight with our second quarter guidance. Second quarter adjusted EBITDA is expected to range from $65 million to $72 million. We expect Clean Earth adjusted earnings to be significantly above prior year results due largely to our pricing and cost initiatives. For Harsco Environmental, results are anticipated to be slightly lower year-on-year, given the comparison to a strong Q2 in the prior year. Specific headwinds for Environmental will include steel production, foreign exchange rates and commodity prices. Sequentially, for Clean Earth, adjusted earnings are anticipated to be comparable with the first quarter at the midpoint of our guidance. This reflects some event-driven work in Q1 not expected to be repeated in Q2. Also certain expenditures, including incentive compensation, are expected to be higher sequentially. These items will be offset by seasonal volume growth. Sequentially, Harsco Environmental earnings will increase largely reflecting the seasonal improvements within its markets. And lastly, corporate costs should be approximately $9 million for the second quarter. Thanks, and I'll now hand the call back to Sarah for Q&A.