As a result of Corteva’s operations, including past operations and those related to divested businesses and discontinued operations of EID, Corteva incurs environmental operating costs for pollution abatement activities including waste collection and disposal, installation and maintenance of air pollution controls and wastewater treatment, emissions testing and monitoring and obtaining permits. Corteva also incurs environmental operating costs related to environmental related research and development activities including environmental field and treatment studies as well as toxicity and degradation testing to evaluate the environmental impact of products and raw materials. In addition, Corteva maintains and periodically reviews and adjusts its accruals for probable environmental remediation and restoration costs. Corteva expects to continue to incur environmental operating costs since it will operate global manufacturing, product handling and distribution facilities that are subject to a broad array of environmental laws and regulations. These rules are subject to change by the implementing governmental agency, which Corteva monitors closely. Corteva’s policy requires that its operations fully meet or exceed legal and regulatory requirements. In addition, Corteva expects to continue certain voluntary programs, and could consider additional voluntary actions, to reduce air emissions, minimize the generation of hazardous waste, decrease the volume of water use and discharges, increase the efficiency of energy use and reduce the generation of persistent, bioaccumulative and toxic materials. Costs to comply with complex environmental laws and regulations, as well as internal voluntary programs and goals, are significant and Corteva expects these costs will continue to be significant for the foreseeable future. Over the long term, such expenditures are subject to considerable uncertainty and could fluctuate significantly. Corteva accrues for environmental matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. As remediation activities vary substantially in duration and cost from site to site, it is difficult to develop precise estimates of future site remediation costs. Corteva expects to base such estimates on several factors, including the complexity of the geology, the nature and extent of contamination, the type of remedy, the outcome of discussions with regulatory agencies and other Potentially Responsible Parties (“PRPs”) at multi-party sites and the number of, and financial viability of, other PRPs. Considerable uncertainty exists with respect to environmental remediation costs and, under adverse changes in circumstances, the potential liability may be materially higher than Corteva’s accruals. Corteva faces risks arising from various unasserted and asserted litigation matters arising out of the normal course of its current and former business operations, including intellectual property, commercial, product liability, environmental and antitrust lawsuits. Corteva has noted a trend in public and private suits being filed on behalf of states, counties, cities and utilities alleging harm to the general public and the environment, including waterways and watersheds. Claims alleging harm to the public and the environment may be brought against Corteva, notwithstanding years of scientific evidence and regulatory determinations supporting the safety of crop protection products. The litigation involving Monsanto’s Roundup® non-selective glyphosate containing weedkiller products has resulted in negative publicity and sentiment and may lead to similar suits with respect to glyphosate-containing products and/or other established crop protection products. Claims and allegations that Corteva’s products or products that Corteva manufactures or markets on behalf of third parties are not safe could result in litigation, damage to Corteva’s reputation and have a material adverse effect on Corteva’s business. It is not possible to predict the outcome of these various proceedings and any potential impact on Corteva. An adverse outcome in any one or more of these matters may result in losses not fully covered by Corteva's insurance policies, and could be material to Corteva's financial results. Various factors or developments can lead to changes in current estimates of liabilities. Such factors and developments may include, but are not limited to, additional data, safety or risk assessments, as well as a final adverse judgment, significant settlement or changes in applicable law. A future adverse ruling or unfavorable development could result in future charges that could have a material adverse effect on Corteva. The company, pursuant to the respective Separation Agreements, is entitled to cost sharing and indemnification from Chemours, Dow and DuPont, as applicable, for certain litigation, environmental, workers’ compensation and other liabilities related to its historical operations. In connection with the recognition of liabilities related to these matters, Corteva records an indemnification asset when recovery is deemed probable. These estimates of recovery are subject to various factors and developments that could result in differences from future estimates or the actual recovery. As of December 31, 2021, the indemnification assets pursuant to the Chemours Separation Agreement and the Corteva Separation Agreement are in aggregate $72 million within accounts and notes receivable - net and $254 million within other assets in the company’s Consolidated Balance Sheet. Any failure by, or inability to pay, these liabilities in line with the indemnification provisions of the Separation Agreements may have a material adverse effect on Corteva and its financial condition and results of operations. In the ordinary course of business, Corteva may make certain commitments, including representations, warranties and indemnities relating to current and past operations, including those related to divested businesses and issue guarantees of third-party obligations. If Corteva were required to make payments as a result, they could exceed the amounts accrued, thereby adversely affecting Corteva’s financial condition and results of operations.