This page collects deforestation alert data published by Brazil’s National Institute for Space Research (INPE) and Imazon, a Brazilian NGO. INPE’s system is called DETER for Sistema de Detecção do Desmatamento na Amazônia Legal em Tempo Real, while Imazon’s system is called SAD for Sistema de Alerta de Deforestation.
As explained here, month-to-month deforestation is highly variable. Short-term, alert-based deforestation detection systems do not penetrate cloud cover, so during the rainy season — from roughly November to April — estimates are notoriously unreliable when compared to the same month a year earlier. Furthermore, most forest clearing in the Amazon occurs when it is dry. So if the dry season is early, deforestation may increase earlier than normal. For these reasons, the most accurate deforestation comparisons are made year-on-year. For Brazil, the deforestation “year” ends July 31: the peak of the dry season when the largest extent of forest is typically visible via satellite.
Short-term data isn’t useless though — it can provide insights on trends, especially over longer periods of time. Generally, comparing 12 consecutive months of alert data will provide a pretty good indication of deforestation relative to other years. Therefore the charts below include monthly data as well as the 12-month moving average (Trailing Twelve Months = “TTM”).
Last update: 2024-Feb-17
Table: Monthly deforestation in the Brazilian Amazon
Month | DETER | DETER TTM | SAD | SAD TTM |
---|---|---|---|---|
Apr 2008 | 1,124 | 156 | ||
May 2008 | 1,096 | 9,190 | 294 | 5,603 |
Jun 2008 | 871 | 9,064 | 612 | 5,716 |
Jul 2008 | 324 | 8,536 | 276 | 5,031 |
Aug 2008 | 757 | 7,835 | 102 | 4,470 |
Sep 2008 | 587 | 8,400 | 321 | 3,679 |
Oct 2008 | 541 | 8,457 | 102 | 3,257 |
Nov 2008 | 355 | 8,554 | 61 | 2,251 |
Dec 2008 | 177 | 8,013 | 50 | 2,233 |
Jan 2009 | 222 | 7,342 | 51 | 2,202 |
Feb 2009 | 143 | 6,925 | 62 | 2,201 |
Mar 2009 | 18 | 6,343 | 57 | 2,144 |
Apr 2009 | 37 | 6,214 | 121 | 2,109 |
May 2009 | 124 | 5,127 | 157 | 1,972 |
Jun 2009 | 578 | 4,155 | 150 | 1,510 |
Jul 2009 | 836 | 3,862 | 532 | 1,766 |
Aug 2009 | 498 | 4,375 | 273 | 1,937 |
Sep 2009 | 400 | 4,116 | 216 | 1,832 |
Oct 2009 | 176 | 3,929 | 194 | 1,924 |
Nov 2009 | 72 | 3,564 | 74 | 1,937 |
Dec 2009 | 3,281 | 16 | 1,903 | |
Jan 2010 | 23 | 3,104 | 63 | 1,915 |
Feb 2010 | 185 | 2,905 | 88 | 1,941 |
Mar 2010 | 52 | 2,947 | 76 | 1,960 |
Apr 2010 | 52 | 2,981 | 65 | 1,904 |
May 2010 | 110 | 2,996 | 96 | 1,843 |
Jun 2010 | 244 | 2,982 | 172 | 1,865 |
Jul 2010 | 485 | 2,647 | 155 | 1,488 |
Aug 2010 | 265 | 2,296 | 210 | 1,425 |
Sep 2010 | 448 | 2,063 | 170 | 1,379 |
Oct 2010 | 389 | 2,111 | 153 | 1,338 |
Nov 2010 | 121 | 2,324 | 65 | 1,329 |
Dec 2010 | 21 | 2,372 | 175 | 1,488 |
Jan 2011 | 36 | 2,394 | 83 | 1,508 |
Feb 2011 | 1 | 2,407 | 63 | 1,483 |
Mar 2011 | 116 | 2,223 | 46 | 1,453 |
Apr 2011 | 477 | 2,287 | 298 | 1,686 |
May 2011 | 268 | 2,712 | 165 | 1,755 |
Jun 2011 | 313 | 2,871 | 99 | 1,682 |
Jul 2011 | 225 | 2,940 | 93 | 1,620 |
Aug 2011 | 163 | 2,680 | 240 | 1,650 |
Sep 2011 | 254 | 2,578 | 170 | 1,650 |
Oct 2011 | 386 | 2,384 | 102 | 1,599 |
Nov 2011 | 133 | 2,381 | 16 | 1,550 |
Dec 2011 | 75 | 2,393 | 40 | 1,415 |
Jan 2012 | 22 | 2,446 | 33 | 1,365 |
Feb 2012 | 307 | 2,432 | 107 | 1,409 |
Mar 2012 | 60 | 2,737 | 53 | 1,416 |
Apr 2012 | 233 | 2,681 | 71 | 1,189 |
May 2012 | 99 | 2,437 | 43 | 1,067 |
Jun 2012 | 108 | 2,268 | 35 | 1,003 |
Jul 2012 | 214 | 2,062 | 140 | 1,050 |
Aug 2012 | 522 | 2,051 | 232 | 1,042 |
Sep 2012 | 283 | 2,410 | 431 | 1,303 |
Oct 2012 | 277 | 2,439 | 487 | 1,688 |
Nov 2012 | 205 | 2,331 | 55 | 1,727 |
Dec 2012 | 131 | 2,403 | 82 | 1,769 |
Jan 2013 | 9 | 2,459 | 35 | 1,771 |
Feb 2013 | 270 | 2,447 | 45 | 1,709 |
Mar 2013 | 28 | 2,410 | 80 | 1,736 |
Apr 2013 | 147 | 2,378 | 140 | 1,805 |
May 2013 | 465 | 2,293 | 84 | 1,846 |
Jun 2013 | 210 | 2,659 | 184 | 1,995 |
Jul 2013 | 217 | 2,762 | 152 | 2,007 |
Aug 2013 | 289 | 2,766 | 185 | 1,960 |
Sep 2013 | 443 | 2,532 | 103 | 1,632 |
Oct 2013 | 155 | 2,692 | 43 | 1,188 |
Nov 2013 | 108 | 2,569 | 37 | 1,170 |
Dec 2013 | 93 | 2,472 | 56 | 1,144 |
Jan 2014 | 75 | 2,434 | 107 | 1,216 |
Feb 2014 | 119 | 2,500 | 11 | 1,182 |
Mar 2014 | 53 | 2,349 | 20 | 1,122 |
Apr 2014 | 166 | 2,374 | 100 | 1,082 |
May 2014 | 271 | 2,394 | 185 | 1,183 |
Jun 2014 | 535 | 2,200 | 843 | 1,842 |
Jul 2014 | 729 | 2,525 | 355 | 2,045 |
Aug 2014 | 890 | 3,036 | 437 | 2,297 |
Sep 2014 | 736 | 3,638 | 402 | 2,596 |
Oct 2014 | 298 | 3,931 | 244 | 2,797 |
Nov 2014 | 77 | 4,074 | 195 | 2,955 |
Dec 2014 | 85 | 4,043 | 95 | 2,994 |
Jan 2015 | 129 | 4,035 | 289 | 3,176 |
Feb 2015 | 61 | 4,089 | 42 | 3,207 |
Mar 2015 | 155 | 4,031 | 58 | 3,245 |
Apr 2015 | 334 | 4,133 | 137 | 3,282 |
May 2015 | 588 | 4,301 | 389 | 3,486 |
Jun 2015 | 855 | 4,618 | 494 | 3,137 |
Jul 2015 | 914 | 4,937 | 542 | 3,324 |
Aug 2015 | 654 | 5,122 | 415 | 3,302 |
Sep 2015 | 504 | 4,885 | 229 | 3,129 |
Oct 2015 | 377 | 4,653 | 230 | 3,115 |
Nov 2015 | 240 | 4,732 | 99 | 3,019 |
Dec 2015 | 89 | 4,896 | 175 | 3,099 |
Jan 2016 | 63 | 4,899 | 52 | 2,862 |
Feb 2016 | 534 | 4,832 | 0 | 2,820 |
Mar 2016 | 123 | 5,305 | 213 | 2,975 |
Apr 2016 | 436 | 5,274 | 183 | 3,021 |
May 2016 | 784 | 5,375 | 474 | 3,106 |
Jun 2016 | 1,431 | 5,571 | 972 | 3,584 |
Jul 2016 | 738 | 6,147 | 539 | 3,581 |
Aug 2016 | 1,025 | 5,974 | 582 | 3,748 |
Sep 2016 | 691 | 6,164 | 387 | 3,906 |
Oct 2016 | 750 | 6,364 | 202 | 3,878 |
Nov 2016 | 367 | 6,418 | 37 | 3,816 |
Dec 2016 | 17 | 6,162 | 0 | 3,641 |
Jan 2017 | 58 | 5,986 | 42 | 3,631 |
Feb 2017 | 101 | 5,971 | 0 | 3,631 |
Mar 2017 | 74 | 5,737 | 97 | 3,515 |
Apr 2017 | 127 | 5,437 | 96 | 3,428 |
May 2017 | 363 | 5,270 | 365 | 3,319 |
Jun 2017 | 609 | 4,928 | 537 | 2,884 |
Jul 2017 | 458 | 4,639 | 544 | 2,889 |
Aug 2017 | 278 | 3,892 | 184 | 2,491 |
Sep 2017 | 403 | 3,603 | 241 | 2,345 |
Oct 2017 | 440 | 3,293 | 261 | 2,404 |
Nov 2017 | 354 | 3,280 | 56 | 2,423 |
Dec 2017 | 288 | 3,551 | 184 | 2,607 |
Jan 2018 | 183 | 3,676 | 70 | 2,635 |
Feb 2018 | 146 | 3,721 | 214 | 2,849 |
Mar 2018 | 357 | 4,003 | 287 | 3,039 |
Apr 2018 | 490 | 4,366 | 217 | 3,160 |
May 2018 | 550 | 4,552 | 634 | 3,429 |
Jun 2018 | 488 | 4,432 | 1,169 | 4,061 |
Jul 2018 | 596 | 4,571 | 778 | 4,295 |
Aug 2018 | 530 | 4,823 | 545 | 4,656 |
Sep 2018 | 746 | 5,166 | 444 | 4,859 |
Oct 2018 | 526 | 5,253 | 187 | 4,785 |
Nov 2018 | 277 | 5,176 | 287 | 5,016 |
Dec 2018 | 67 | 4,955 | 246 | 5,078 |
Jan 2019 | 136 | 4,909 | 108 | 5,116 |
Feb 2019 | 139 | 4,902 | 93 | 4,995 |
Mar 2019 | 251 | 4,796 | 67 | 4,775 |
Apr 2019 | 247 | 4,554 | 195 | 4,753 |
May 2019 | 739 | 4,743 | 797 | 4,916 |
Jun 2019 | 935 | 5,190 | 801 | 4,548 |
Jul 2019 | 2,255 | 6,849 | 1,287 | 5,057 |
Aug 2019 | 1,713 | 8,032 | 886 | 5,398 |
Sep 2019 | 1,453 | 8,739 | 802 | 5,756 |
Oct 2019 | 555 | 8,768 | 583 | 6,152 |
Nov 2019 | 563 | 9,054 | 354 | 6,219 |
Dec 2019 | 190 | 9,176 | 227 | 6,200 |
Jan 2020 | 284 | 9,325 | 188 | 6,280 |
Feb 2020 | 186 | 9,371 | 102 | 6,289 |
Mar 2020 | 327 | 9,447 | 324 | 6,546 |
Apr 2020 | 407 | 9,607 | 529 | 6,880 |
May 2020 | 834 | 9,702 | 649 | 6,732 |
Jun 2020 | 1,043 | 9,810 | 822 | 6,753 |
Jul 2020 | 1,659 | 9,214 | 1,147 | 6,613 |
Aug 2020 | 1,359 | 8,859 | 1,499 | 7,226 |
Sep 2020 | 964 | 8,371 | 1,218 | 7,642 |
Oct 2020 | 836 | 8,652 | 890 | 7,949 |
Nov 2020 | 310 | 8,399 | 484 | 8,079 |
Dec 2020 | 216 | 8,425 | 276 | 8,128 |
Jan 2021 | 86 | 8,225 | 196 | 8,136 |
Feb 2021 | 125 | 8,163 | 179 | 8,213 |
Mar 2021 | 368 | 8,204 | 810 | 8,699 |
Apr 2021 | 580 | 8,377 | 778 | 8,948 |
May 2021 | 1,390 | 8,933 | 1,125 | 9,424 |
Jun 2021 | 1,061 | 8,951 | 926 | 9,528 |
Jul 2021 | 1,498 | 8,790 | 2,095 | 10,476 |
Aug 2021 | 918 | 8,350 | 1,606 | 10,583 |
Sep 2021 | 985 | 8,372 | 1,224 | 10,589 |
Oct 2021 | 877 | 8,413 | 803 | 10,502 |
Nov 2021 | 249 | 8,352 | 480 | 10,498 |
Dec 2021 | 87 | 8,223 | 140 | 10,362 |
Jan 2022 | 430 | 8,568 | 261 | 10,427 |
Feb 2022 | 199 | 8,642 | 303 | 10,551 |
Mar 2022 | 312 | 8,587 | 123 | 9,864 |
Apr 2022 | 1,026 | 9,033 | 1,197 | 10,283 |
May 2022 | 900 | 8,543 | 1,476 | 10,634 |
Jun 2022 | 1,120 | 8,602 | 1,429 | 11,137 |
Jul 2022 | 1,487 | 8,590 | 1,739 | 10,781 |
Aug 2022 | 1,661 | 9,333 | 1,415 | 10,590 |
Sep 2022 | 1,455 | 9,803 | 1,126 | 10,492 |
Oct 2022 | 904 | 9,831 | 627 | 10,316 |
Nov 2022 | 555 | 10,136 | 590 | 10,426 |
Dec 2022 | 229 | 10,278 | 287 | 10,573 |
Jan 2023 | 167 | 10,014 | 198 | 10,510 |
Feb 2023 | 322 | 10,137 | 325 | 10,532 |
Mar 2023 | 356 | 10,181 | 344 | 10,753 |
Apr 2023 | 329 | 9,483 | 336 | 9,892 |
May 2023 | 812 | 9,396 | 339 | 8,755 |
Jun 2023 | 663 | 8,939 | 361 | 7,687 |
Jul 2023 | 500 | 7,952 | 499 | 6,447 |
Aug 2023 | 563 | 6,854 | 568 | 5,600 |
Sep 2023 | 629 | 6,029 | 546 | 5,020 |
Oct 2023 | 435 | 5,559 | 290 | 4,683 |
Nov 2023 | 201 | 5,206 | 116 | 4,209 |
Dec 2023 | 177 | 5,154 | 108 | 4,030 |
Jan 2024 | 119 | 5,106 |
In August 2016, the table data for the DETER columns switches from DETER to DETER-B, Brazil’s new deforestation detection system.
- Etelvina Ramos: From coca farmer to opponent of the illegal crop
- Etelvina Ramos’ story encompasses the war in the Colombian Amazon. She grew up alongside coca crops, witnessed several massacres, and was displaced by violence due to the illicit, but profitable, crop.- Now, at 52 years old, she is fighting to replace coca.- Etelvina Ramos has a mission that is contrary to the interests of the drug trafficking industry: through her work in the Workers’ Association of Curillo (ASTRACUR), she is seeking the approval of a rural reserve. This would make it possible to close the pathway to coca production and illegal mining.- Due to her work as an environmental and land defender, she frequently faces threats by illegal armed groups. She admits that she has learned to live with the fear of death.
- Deforestation haunts top Peruvian reserve and its Indigenous communities
- Peru’s Amarakaeri Communal Reserve, considered one of the best-protected nature reserves in the world, has seen a spike in deforestation on its fringes from the expansion of illegal coca cultivation and mining, and new road construction.- The forest loss appears to be affecting the ancestral lands of several Indigenous communities, including the Harakbut, Yine and Matsiguenka peoples, according to a new report by the Monitoring of the Andean Amazon Project (MAAP).- The report found that 19,978 hectares (49,367 acres) of forest have been cleared in the buffer of the reserve over the past two decades.- According to Indigenous leaders, the state is doing “practically nothing” to address deforestation drivers in the buffer zone, and they warn that if left unchecked, the activity will spread into the protected area itself.
- Amid record-high fires across the Amazon, Brazil loses primary forests
- The number of fires shows no signs of easing as Brazil’s Roraima faces unprecedented blazes, and several Amazonian countries, including Guyana, Suriname and Venezuela, registered record-high outbreaks in the first quarter this year.- Fire outbreaks in primary (old-growth) forest in Brazil’s Amazon soared by 152% in 2023, according to a recent study, rising from 13,477 in 2022 to 34,012 in 2023.- Fires in the mature forest regions are the leading drivers of degradation of the Amazon Rainforest because the biome hasn’t evolved to adapt to such blazes, according to the researchers.- The fires are a result of a drought that has been fueled by climate change and worsened by natural weather phenomena, such as El Niño, which has intensified dry conditions already aggravated by high temperatures across the world, experts say.
- A web of front people conceals environmental offenders in the Amazon
- A paper trail left by a notorious land grabber reveals how he used relatives and an employee as fronts to evade environmental fines and lawsuits, shedding light on this widespread practice in the Brazilian Amazon.- Fronts prevent the real criminals from having their assets seized to pay for environmental fines, besides consuming time and resources from the authorities, who spend years trying to prove who the real financier of the deforestation is.- Experts say it’s best to go after environmental offenders where it hurts the most, by seizing their assets, rather than to chase down their true identity.- This investigation is part of a partnership between Mongabay and Repórter Brasil.
- Brazil boosts protection of Amazon mangroves with new reserves in Pará state
- The state of Pará has created two new conservation areas along the Amazonian coastline, placing almost all of its mangroves under federal protection.- The two reserves mean that an additional 74,700 hectares (184,600 acres) have been included in the largest and most conserved continuous belt of mangroves on the planet.- The process to create the reserves took more than 13 years and faced several setbacks; the final outcome has been celebrated by environmentalists as a victory for local communities and biodiversity.- The new extractive reserves allow resident populations to engage in traditional and sustainable extractive practices such as fishing and hunting, while keeping out big businesses, such as commercial aquaculture or logging.
- Deforestation alerts in the Brazilian Amazon fall to a 5-year low
- Forest clearing detected by Brazil’s deforestation alert system fell to the lowest level in nearly five years.- According to data released last week by the country’s space agency, INPE, deforestation registered over the past twelve months amounts to 4,816 square kilometers, 53% below the level this time last year.- The drop in deforestation has occurred despite a severe drought affecting much of the Amazon basin.
- Cross-border Indigenous efforts in Peru & Brazil aim to protect isolated groups
- Indigenous organizations in Peru and Brazil are joining forces to push their respective governments to safeguard the Yavarí-Tapiche Territorial Corridor, which covers 16 million hectares (39.5 million acres) across both countries.- The cross-border initiative aims to protect the ancestral territories of Indigenous peoples in isolation and initial contact who travel freely across both borders and are threatened by those who engage in illegal activity in or near their territories.- The Indigenous organizations plan to create a commission, made up of groups from both sides of the border, to exchange knowledge and define cross-border Indigenous policies for the protection of isolated peoples, such as measures to prevent territorial invasions and collaborate on health matters.
- Brazil’s illegal gold trade takes a hammering, but persists underground
- Measures throughout 2023 to curb the illegal gold trade in Brazil led to a 20% drop in the country’s exports of the precious metal.- In Itaituba, the hub of the Amazon illegal gold trade, taxes from gold sales fell by more than 90% in just the first quarter of this year.- Experts attribute this drop to police raids on illegal mining operations and on requirements for sellers to issue electronic invoices.- But they warn the illegal gold still persists, shifting to unofficial channels to evade the eye of regulators.
- New technologies to map environmental crime in the Amazon Basin (commentary)
- Environmental crimes like land grabbing, illegal deforestation, and poaching hinder climate action, deter investment in sustainable practices, and threaten biodiversity across major biomes worldwide.- Despite challenges such as vast territories difficult to police and weak rule of law, new technologies like geospatial and predictive analytics are being leveraged to enhance the detection and disruption of these activities.- Innovative approaches, including public-private partnerships and AI tools, show promise in improving real-time monitoring and enforcement, although they require increased investment and training to be truly effective, argue Robert Muggah and Peter Smith of Instituto Igarapé, a “think and do tank” in Brazil.- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.
- A short walk through Amazon time: Interview with archaeologist Anna Roosevelt
- Anna Roosevelt has been working in the Amazon for four decades and her pivotal research has changed the knowledge of the rainforest’s occupation.- In an interview with Mongabay, she explains how her research led to evidence of much older Amazon settlements than previously thought, challenging a decades-long scientific consensus about how Indigenous people related to the forest.- “One reason I was able to make some great discoveries is because of how opinionated archaeologists in the mid-20th century were. I only benefited from their mistakes,” she said.- Roosevelt said the recent hype regarding the “garden cities” in Ecuador is “annoying”, as it is not a new discovery and it ignores older research from Latin American archaeologists.