Summarize the following text. The summary must conform to the following criteria
                 1. The tone must be neutral.
                 2. The summary must at maximum be three sentences.
                 3. The first sentence will cover financial performance.
                 4. The second sentence will cover current business operations, including opportunities and headwinds.
                 5. The third sentence will provide details on forward looking projections for the business.
                 6. Use of subjective adjectives must be minimized.
                 7. Names or personally identifiable information should not be used.
 

Here is the text to summarize:


good morning, and thank you for standing by. welcome to today's international paper third  quarter 2021 earnings conference call. 
i would now like to turn the conference over to NAME_1, vice president, investor  relations. please go ahead, sir.
thank you, NAME_2. good morning, and thank you for joining international paper's third quarter  2021 earnings call. our speakers this morning are NAME_3, chairman and chief executive  officer; and NAME_4 NAME_5, senior vice president and chief financial officer. there is important  information at the beginning of our presentation on slide two, including certain legal disclaimers.
for example, during today's call, we will make forward-looking statements that are subject to risks  and uncertainties. we will also present certain non-u.s. gaap financial information. a  reconciliation of those figures to u.s. gaap financial measures is available on our website. our  website also contains copies of the third quarter 2021 earnings press release and today's  presentation slides. lastly, relative to the ilim joint venture, slide two provides context around the  joint venture's financial information and statistical measures. i will now turn the call over to NAME_6.
thank you, NAME_7, and good morning, everyone. we will begin our discussion on slide three. in  the third quarter, international paper grew revenue, earnings and margins, and we continued to  generate strong cash from operations. we continue to see strong demand for corrugated  packaging and solid demand for absorbent pulp. we're making strong progress on price  realization from our prior increases. having said that, the supply chain and input cost environment  remains very challenging and it impacted our results much more than we anticipated.
the widespread supply chain constraints limited our ability to capture the full oppo Write exactly 5 paragraphs each separated with two new lines answering this question. The 3rd paragraph must start with "services".
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